diff --git a/clients/abusive_experience_report/mix.exs b/clients/abusive_experience_report/mix.exs
index ea709321fb..df0ac4a9b3 100644
--- a/clients/abusive_experience_report/mix.exs
+++ b/clients/abusive_experience_report/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AbusiveExperienceReport.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/accelerated_mobile_page_url/mix.exs b/clients/accelerated_mobile_page_url/mix.exs
index 1c0849aac2..89777806a9 100644
--- a/clients/accelerated_mobile_page_url/mix.exs
+++ b/clients/accelerated_mobile_page_url/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AcceleratedMobilePageUrl.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/access_approval/mix.exs b/clients/access_approval/mix.exs
index 92c0a03427..2326769ef3 100644
--- a/clients/access_approval/mix.exs
+++ b/clients/access_approval/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AccessApproval.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/access_context_manager/mix.exs b/clients/access_context_manager/mix.exs
index 04b768c234..58bb7c7ead 100644
--- a/clients/access_context_manager/mix.exs
+++ b/clients/access_context_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AccessContextManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_exchange_buyer/mix.exs b/clients/ad_exchange_buyer/mix.exs
index 73d3d6db83..b0c11d581f 100644
--- a/clients/ad_exchange_buyer/mix.exs
+++ b/clients/ad_exchange_buyer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AdExchangeBuyer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_exchange_seller/mix.exs b/clients/ad_exchange_seller/mix.exs
index 933c55982c..d1eefc97a8 100644
--- a/clients/ad_exchange_seller/mix.exs
+++ b/clients/ad_exchange_seller/mix.exs
@@ -23,7 +23,7 @@ defmodule GoogleApi.AdExchangeSeller.V20.Mixfile do
   defp deps() do
     [
       {:google_gax, "~> 0.1.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_experience_report/mix.exs b/clients/ad_experience_report/mix.exs
index c95a70fd65..4df553c47e 100644
--- a/clients/ad_experience_report/mix.exs
+++ b/clients/ad_experience_report/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AdExperienceReport.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_mob/mix.exs b/clients/ad_mob/mix.exs
index cd014bc84c..29a55af968 100644
--- a/clients/ad_mob/mix.exs
+++ b/clients/ad_mob/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AdMob.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_sense/mix.exs b/clients/ad_sense/mix.exs
index 7b1b38b164..53d5b54e7c 100644
--- a/clients/ad_sense/mix.exs
+++ b/clients/ad_sense/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AdSense.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ad_sense_host/mix.exs b/clients/ad_sense_host/mix.exs
index a980457818..9e3d98365f 100644
--- a/clients/ad_sense_host/mix.exs
+++ b/clients/ad_sense_host/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AdSenseHost.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/admin/mix.exs b/clients/admin/mix.exs
index c46ec24290..95eff1a17f 100644
--- a/clients/admin/mix.exs
+++ b/clients/admin/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Admin.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/alert_center/mix.exs b/clients/alert_center/mix.exs
index a6442dba10..91c3779b61 100644
--- a/clients/alert_center/mix.exs
+++ b/clients/alert_center/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AlertCenter.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/analytics/mix.exs b/clients/analytics/mix.exs
index ce0430b182..7897c7dc67 100644
--- a/clients/analytics/mix.exs
+++ b/clients/analytics/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Analytics.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/analytics_admin/mix.exs b/clients/analytics_admin/mix.exs
index 5d75373261..92d2606fd0 100644
--- a/clients/analytics_admin/mix.exs
+++ b/clients/analytics_admin/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AnalyticsAdmin.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/analytics_data/mix.exs b/clients/analytics_data/mix.exs
index c6f3e94763..f2dac24b83 100644
--- a/clients/analytics_data/mix.exs
+++ b/clients/analytics_data/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AnalyticsData.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/analytics_hub/mix.exs b/clients/analytics_hub/mix.exs
index a41edcff15..55ea9e950d 100644
--- a/clients/analytics_hub/mix.exs
+++ b/clients/analytics_hub/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AnalyticsHub.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/analytics_reporting/mix.exs b/clients/analytics_reporting/mix.exs
index ed0807d7a3..0da9d02e80 100644
--- a/clients/analytics_reporting/mix.exs
+++ b/clients/analytics_reporting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AnalyticsReporting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/android_device_provisioning/mix.exs b/clients/android_device_provisioning/mix.exs
index 2cce7a5ca7..22da4ad2fc 100644
--- a/clients/android_device_provisioning/mix.exs
+++ b/clients/android_device_provisioning/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AndroidDeviceProvisioning.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/android_enterprise/mix.exs b/clients/android_enterprise/mix.exs
index faa16c7a05..44d573cd4f 100644
--- a/clients/android_enterprise/mix.exs
+++ b/clients/android_enterprise/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AndroidEnterprise.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/android_management/mix.exs b/clients/android_management/mix.exs
index 788b17746a..e3bbd771b9 100644
--- a/clients/android_management/mix.exs
+++ b/clients/android_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AndroidManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/android_publisher/mix.exs b/clients/android_publisher/mix.exs
index 3820d6574f..b6d9f3bb3f 100644
--- a/clients/android_publisher/mix.exs
+++ b/clients/android_publisher/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AndroidPublisher.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/api_gateway/mix.exs b/clients/api_gateway/mix.exs
index 8c19ed5dea..4669014c49 100644
--- a/clients/api_gateway/mix.exs
+++ b/clients/api_gateway/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.APIGateway.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/api_keys/mix.exs b/clients/api_keys/mix.exs
index d56f89eafe..efaa710c48 100644
--- a/clients/api_keys/mix.exs
+++ b/clients/api_keys/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.APIKeys.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/apigee/mix.exs b/clients/apigee/mix.exs
index 51a6faaeab..6eeb18b63a 100644
--- a/clients/apigee/mix.exs
+++ b/clients/apigee/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Apigee.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/apigee_registry/mix.exs b/clients/apigee_registry/mix.exs
index e74f9ed6c8..76f839c1f7 100644
--- a/clients/apigee_registry/mix.exs
+++ b/clients/apigee_registry/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ApigeeRegistry.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/app_engine/mix.exs b/clients/app_engine/mix.exs
index 8b4b16fba2..78f61ee7ef 100644
--- a/clients/app_engine/mix.exs
+++ b/clients/app_engine/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AppEngine.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/app_state/mix.exs b/clients/app_state/mix.exs
index 1479a4095e..c3175fc4c8 100644
--- a/clients/app_state/mix.exs
+++ b/clients/app_state/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AppState.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/apps_activity/mix.exs b/clients/apps_activity/mix.exs
index 9eae6c8e6b..464dc8d3d8 100644
--- a/clients/apps_activity/mix.exs
+++ b/clients/apps_activity/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AppsActivity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/area120_tables/mix.exs b/clients/area120_tables/mix.exs
index cc92138cd4..3741bbb9dd 100644
--- a/clients/area120_tables/mix.exs
+++ b/clients/area120_tables/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Area120Tables.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/artifact_registry/mix.exs b/clients/artifact_registry/mix.exs
index 533fe043e3..00228e81df 100644
--- a/clients/artifact_registry/mix.exs
+++ b/clients/artifact_registry/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ArtifactRegistry.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/assured_workloads/mix.exs b/clients/assured_workloads/mix.exs
index 56369c3b6b..5f4b0343dc 100644
--- a/clients/assured_workloads/mix.exs
+++ b/clients/assured_workloads/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AssuredWorkloads.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/authorized_buyers_marketplace/mix.exs b/clients/authorized_buyers_marketplace/mix.exs
index 916f256ddf..f71e908d97 100644
--- a/clients/authorized_buyers_marketplace/mix.exs
+++ b/clients/authorized_buyers_marketplace/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.AuthorizedBuyersMarketplace.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/bare_metal_solution/mix.exs b/clients/bare_metal_solution/mix.exs
index a0c9cea0c8..e66549f574 100644
--- a/clients/bare_metal_solution/mix.exs
+++ b/clients/bare_metal_solution/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BareMetalSolution.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/beyond_corp/mix.exs b/clients/beyond_corp/mix.exs
index a568b5e40e..68117065a2 100644
--- a/clients/beyond_corp/mix.exs
+++ b/clients/beyond_corp/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BeyondCorp.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/big_query/mix.exs b/clients/big_query/mix.exs
index dba1ab149e..82dec29554 100644
--- a/clients/big_query/mix.exs
+++ b/clients/big_query/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BigQuery.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/big_query_connection/mix.exs b/clients/big_query_connection/mix.exs
index a99356c464..2bf002e961 100644
--- a/clients/big_query_connection/mix.exs
+++ b/clients/big_query_connection/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BigQueryConnection.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/big_query_data_transfer/mix.exs b/clients/big_query_data_transfer/mix.exs
index ccd4c96a49..f3f43da438 100644
--- a/clients/big_query_data_transfer/mix.exs
+++ b/clients/big_query_data_transfer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BigQueryDataTransfer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/big_query_reservation/mix.exs b/clients/big_query_reservation/mix.exs
index 82ca7bfae6..3df822b850 100644
--- a/clients/big_query_reservation/mix.exs
+++ b/clients/big_query_reservation/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BigQueryReservation.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/bigtable_admin/mix.exs b/clients/bigtable_admin/mix.exs
index 2b984c00fc..0862ae76d9 100644
--- a/clients/bigtable_admin/mix.exs
+++ b/clients/bigtable_admin/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BigtableAdmin.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/billing_budgets/mix.exs b/clients/billing_budgets/mix.exs
index f7c7145256..55319a8ba7 100644
--- a/clients/billing_budgets/mix.exs
+++ b/clients/billing_budgets/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BillingBudgets.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/binary_authorization/mix.exs b/clients/binary_authorization/mix.exs
index abfa21864a..fec76ab818 100644
--- a/clients/binary_authorization/mix.exs
+++ b/clients/binary_authorization/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BinaryAuthorization.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/blogger/mix.exs b/clients/blogger/mix.exs
index 4343ca3bc1..fd0dc80563 100644
--- a/clients/blogger/mix.exs
+++ b/clients/blogger/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Blogger.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/books/mix.exs b/clients/books/mix.exs
index c274237c52..1f6898208d 100644
--- a/clients/books/mix.exs
+++ b/clients/books/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Books.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/business_profile_performance/mix.exs b/clients/business_profile_performance/mix.exs
index 9c196bbeb9..5ada4447d5 100644
--- a/clients/business_profile_performance/mix.exs
+++ b/clients/business_profile_performance/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.BusinessProfilePerformance.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/calendar/mix.exs b/clients/calendar/mix.exs
index b5b7b96c98..18c3122e58 100644
--- a/clients/calendar/mix.exs
+++ b/clients/calendar/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Calendar.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/certificate_manager/mix.exs b/clients/certificate_manager/mix.exs
index af76009ed9..21a55ae44b 100644
--- a/clients/certificate_manager/mix.exs
+++ b/clients/certificate_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CertificateManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/chat/mix.exs b/clients/chat/mix.exs
index b1897ebf57..115ca1f777 100644
--- a/clients/chat/mix.exs
+++ b/clients/chat/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Chat.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/chrome_management/mix.exs b/clients/chrome_management/mix.exs
index 9972c79fb7..b8c8995ed4 100644
--- a/clients/chrome_management/mix.exs
+++ b/clients/chrome_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ChromeManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/chrome_policy/mix.exs b/clients/chrome_policy/mix.exs
index 2fddd826fd..b8c730e98e 100644
--- a/clients/chrome_policy/mix.exs
+++ b/clients/chrome_policy/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ChromePolicy.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/chrome_ux_report/mix.exs b/clients/chrome_ux_report/mix.exs
index cb44d85205..3b6e7b1cf4 100644
--- a/clients/chrome_ux_report/mix.exs
+++ b/clients/chrome_ux_report/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ChromeUXReport.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/civic_info/mix.exs b/clients/civic_info/mix.exs
index b21ca49d6a..54cdbd91f5 100644
--- a/clients/civic_info/mix.exs
+++ b/clients/civic_info/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CivicInfo.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/classroom/mix.exs b/clients/classroom/mix.exs
index 9be759beaa..7447325edf 100644
--- a/clients/classroom/mix.exs
+++ b/clients/classroom/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Classroom.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_asset/mix.exs b/clients/cloud_asset/mix.exs
index 96960849fc..c48384cb3b 100644
--- a/clients/cloud_asset/mix.exs
+++ b/clients/cloud_asset/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudAsset.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_billing/mix.exs b/clients/cloud_billing/mix.exs
index ee8a1127e7..eb9ec4b4e4 100644
--- a/clients/cloud_billing/mix.exs
+++ b/clients/cloud_billing/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudBilling.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_build/mix.exs b/clients/cloud_build/mix.exs
index 9405f96323..0a96009d68 100644
--- a/clients/cloud_build/mix.exs
+++ b/clients/cloud_build/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudBuild.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_channel/mix.exs b/clients/cloud_channel/mix.exs
index 445a32a75f..93b2ab634a 100644
--- a/clients/cloud_channel/mix.exs
+++ b/clients/cloud_channel/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudChannel.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_debugger/mix.exs b/clients/cloud_debugger/mix.exs
index b2ac818a35..b4a789fe83 100644
--- a/clients/cloud_debugger/mix.exs
+++ b/clients/cloud_debugger/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudDebugger.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_deploy/mix.exs b/clients/cloud_deploy/mix.exs
index 531abc2ccf..6610204765 100644
--- a/clients/cloud_deploy/mix.exs
+++ b/clients/cloud_deploy/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudDeploy.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_error_reporting/mix.exs b/clients/cloud_error_reporting/mix.exs
index 218bf678e3..780bfcc6c1 100644
--- a/clients/cloud_error_reporting/mix.exs
+++ b/clients/cloud_error_reporting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudErrorReporting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_functions/mix.exs b/clients/cloud_functions/mix.exs
index 019c1aa3ca..74da61ce9f 100644
--- a/clients/cloud_functions/mix.exs
+++ b/clients/cloud_functions/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudFunctions.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_identity/mix.exs b/clients/cloud_identity/mix.exs
index 58688b9910..12f07bbe4d 100644
--- a/clients/cloud_identity/mix.exs
+++ b/clients/cloud_identity/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudIdentity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_iot/mix.exs b/clients/cloud_iot/mix.exs
index ab5653d3ae..63dce4c5b2 100644
--- a/clients/cloud_iot/mix.exs
+++ b/clients/cloud_iot/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudIot.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_kms/mix.exs b/clients/cloud_kms/mix.exs
index 8774e9db0b..8b0859792d 100644
--- a/clients/cloud_kms/mix.exs
+++ b/clients/cloud_kms/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudKMS.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_monitoring/mix.exs b/clients/cloud_monitoring/mix.exs
index c98b2b0446..8f38d7d296 100644
--- a/clients/cloud_monitoring/mix.exs
+++ b/clients/cloud_monitoring/mix.exs
@@ -25,7 +25,7 @@ defmodule GoogleApi.CloudMonitoring.V2BETA2.Mixfile do
     [
       {:tesla, "~> 0.5"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_private_catalog/mix.exs b/clients/cloud_private_catalog/mix.exs
index 546734d814..6ba933b90f 100644
--- a/clients/cloud_private_catalog/mix.exs
+++ b/clients/cloud_private_catalog/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudPrivateCatalog.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_private_catalog_producer/mix.exs b/clients/cloud_private_catalog_producer/mix.exs
index 5ef0d7ab69..2bd613ebf0 100644
--- a/clients/cloud_private_catalog_producer/mix.exs
+++ b/clients/cloud_private_catalog_producer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudPrivateCatalogProducer.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_profiler/mix.exs b/clients/cloud_profiler/mix.exs
index d7805cd174..a938560817 100644
--- a/clients/cloud_profiler/mix.exs
+++ b/clients/cloud_profiler/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudProfiler.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_resource_manager/mix.exs b/clients/cloud_resource_manager/mix.exs
index 10ea7d5574..4b07e3eb78 100644
--- a/clients/cloud_resource_manager/mix.exs
+++ b/clients/cloud_resource_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudResourceManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_run/mix.exs b/clients/cloud_run/mix.exs
index 12253efd8a..35a9b2c660 100644
--- a/clients/cloud_run/mix.exs
+++ b/clients/cloud_run/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudRun.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_scheduler/mix.exs b/clients/cloud_scheduler/mix.exs
index df8a9e9c78..e4db3ef912 100644
--- a/clients/cloud_scheduler/mix.exs
+++ b/clients/cloud_scheduler/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudScheduler.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_search/mix.exs b/clients/cloud_search/mix.exs
index 5d0a8d84bb..fbfb6e2403 100644
--- a/clients/cloud_search/mix.exs
+++ b/clients/cloud_search/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudSearch.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_shell/mix.exs b/clients/cloud_shell/mix.exs
index f31e14bfa4..7dcc245a25 100644
--- a/clients/cloud_shell/mix.exs
+++ b/clients/cloud_shell/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudShell.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_support/mix.exs b/clients/cloud_support/mix.exs
index 005637f3cc..17f643a4f6 100644
--- a/clients/cloud_support/mix.exs
+++ b/clients/cloud_support/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudSupport.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_tasks/mix.exs b/clients/cloud_tasks/mix.exs
index b98d14b268..a709fd2a08 100644
--- a/clients/cloud_tasks/mix.exs
+++ b/clients/cloud_tasks/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudTasks.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_trace/mix.exs b/clients/cloud_trace/mix.exs
index 79d0c7e7a1..f35a373b94 100644
--- a/clients/cloud_trace/mix.exs
+++ b/clients/cloud_trace/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CloudTrace.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/cloud_user_accounts/mix.exs b/clients/cloud_user_accounts/mix.exs
index 07ebb19626..7ab3b639b6 100644
--- a/clients/cloud_user_accounts/mix.exs
+++ b/clients/cloud_user_accounts/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.CloudUserAccounts.Vm_alpha.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/comment_analyzer/mix.exs b/clients/comment_analyzer/mix.exs
index e8bab11e74..33764a2495 100644
--- a/clients/comment_analyzer/mix.exs
+++ b/clients/comment_analyzer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CommentAnalyzer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/composer/mix.exs b/clients/composer/mix.exs
index e0163cecff..06a6a93951 100644
--- a/clients/composer/mix.exs
+++ b/clients/composer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Composer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/compute/mix.exs b/clients/compute/mix.exs
index 43c38209bc..c3a65052f7 100644
--- a/clients/compute/mix.exs
+++ b/clients/compute/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Compute.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/connectors/mix.exs b/clients/connectors/mix.exs
index 13ae4cd905..fef7996772 100644
--- a/clients/connectors/mix.exs
+++ b/clients/connectors/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Connectors.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/consumer_surveys/mix.exs b/clients/consumer_surveys/mix.exs
index 3ee78858d9..aeb38d9138 100644
--- a/clients/consumer_surveys/mix.exs
+++ b/clients/consumer_surveys/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.ConsumerSurveys.V2.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/contact_center_insights/mix.exs b/clients/contact_center_insights/mix.exs
index a1350ef7af..a98563428b 100644
--- a/clients/contact_center_insights/mix.exs
+++ b/clients/contact_center_insights/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ContactCenterInsights.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/container/mix.exs b/clients/container/mix.exs
index 073b890bee..945e9f3708 100644
--- a/clients/container/mix.exs
+++ b/clients/container/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Container.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/container_analysis/mix.exs b/clients/container_analysis/mix.exs
index eadac01651..09884fd68f 100644
--- a/clients/container_analysis/mix.exs
+++ b/clients/container_analysis/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ContainerAnalysis.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/content/mix.exs b/clients/content/mix.exs
index d9a1750181..90aa48355f 100644
--- a/clients/content/mix.exs
+++ b/clients/content/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Content.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/custom_search/mix.exs b/clients/custom_search/mix.exs
index 8510ba1c54..ea3ef6720c 100644
--- a/clients/custom_search/mix.exs
+++ b/clients/custom_search/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.CustomSearch.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/data_catalog/mix.exs b/clients/data_catalog/mix.exs
index 27d6985b2c..c568ade170 100644
--- a/clients/data_catalog/mix.exs
+++ b/clients/data_catalog/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DataCatalog.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/data_fusion/mix.exs b/clients/data_fusion/mix.exs
index c633e62468..0bc3119c6a 100644
--- a/clients/data_fusion/mix.exs
+++ b/clients/data_fusion/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DataFusion.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/data_labeling/mix.exs b/clients/data_labeling/mix.exs
index 92d9c76682..27b3869c30 100644
--- a/clients/data_labeling/mix.exs
+++ b/clients/data_labeling/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DataLabeling.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/data_migration/mix.exs b/clients/data_migration/mix.exs
index 6775197959..0d7ff4314a 100644
--- a/clients/data_migration/mix.exs
+++ b/clients/data_migration/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DataMigration.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/data_pipelines/mix.exs b/clients/data_pipelines/mix.exs
index 55e76dac71..a2c77ba66b 100644
--- a/clients/data_pipelines/mix.exs
+++ b/clients/data_pipelines/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DataPipelines.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dataflow/mix.exs b/clients/dataflow/mix.exs
index 72078927eb..93e204dec5 100644
--- a/clients/dataflow/mix.exs
+++ b/clients/dataflow/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Dataflow.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dataplex/mix.exs b/clients/dataplex/mix.exs
index bcce90eb7e..de22cdac58 100644
--- a/clients/dataplex/mix.exs
+++ b/clients/dataplex/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Dataplex.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dataproc/mix.exs b/clients/dataproc/mix.exs
index 368e439f89..5eb806c6aa 100644
--- a/clients/dataproc/mix.exs
+++ b/clients/dataproc/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Dataproc.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/datastore/mix.exs b/clients/datastore/mix.exs
index 46e3956a78..3fa448170f 100644
--- a/clients/datastore/mix.exs
+++ b/clients/datastore/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Datastore.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/datastream/mix.exs b/clients/datastream/mix.exs
index 1047010794..5c5ed0769d 100644
--- a/clients/datastream/mix.exs
+++ b/clients/datastream/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Datastream.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/deployment_manager/mix.exs b/clients/deployment_manager/mix.exs
index e806494148..d64c5f32f8 100644
--- a/clients/deployment_manager/mix.exs
+++ b/clients/deployment_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DeploymentManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dfa_reporting/mix.exs b/clients/dfa_reporting/mix.exs
index f7b1017901..932586517a 100644
--- a/clients/dfa_reporting/mix.exs
+++ b/clients/dfa_reporting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DFAReporting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dialogflow/mix.exs b/clients/dialogflow/mix.exs
index b52bc209d4..4b4ddad9d1 100644
--- a/clients/dialogflow/mix.exs
+++ b/clients/dialogflow/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Dialogflow.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/digital_asset_links/mix.exs b/clients/digital_asset_links/mix.exs
index d3fd8e79d8..f455ad71d9 100644
--- a/clients/digital_asset_links/mix.exs
+++ b/clients/digital_asset_links/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DigitalAssetLinks.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/discovery/mix.exs b/clients/discovery/mix.exs
index fd8de2ba6f..2a3f82f90d 100644
--- a/clients/discovery/mix.exs
+++ b/clients/discovery/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Discovery.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/display_video/mix.exs b/clients/display_video/mix.exs
index 232cadf618..7c05a78fa3 100644
--- a/clients/display_video/mix.exs
+++ b/clients/display_video/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DisplayVideo.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dlp/mix.exs b/clients/dlp/mix.exs
index a4efda4dc8..a30b3c053c 100644
--- a/clients/dlp/mix.exs
+++ b/clients/dlp/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DLP.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/dns/mix.exs b/clients/dns/mix.exs
index 198b245fe5..492a027335 100644
--- a/clients/dns/mix.exs
+++ b/clients/dns/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DNS.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/docs/mix.exs b/clients/docs/mix.exs
index 9a645e4399..39f6b30e70 100644
--- a/clients/docs/mix.exs
+++ b/clients/docs/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Docs.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/document_ai/mix.exs b/clients/document_ai/mix.exs
index b38234e5b5..23f9cf7258 100644
--- a/clients/document_ai/mix.exs
+++ b/clients/document_ai/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DocumentAI.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/domains/mix.exs b/clients/domains/mix.exs
index d10ea94133..e7764e7b31 100644
--- a/clients/domains/mix.exs
+++ b/clients/domains/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Domains.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/domains_rdap/mix.exs b/clients/domains_rdap/mix.exs
index 623cf69720..408fbdebe1 100644
--- a/clients/domains_rdap/mix.exs
+++ b/clients/domains_rdap/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DomainsRDAP.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/double_click_bid_manager/mix.exs b/clients/double_click_bid_manager/mix.exs
index dd75fc2ec2..32f222c432 100644
--- a/clients/double_click_bid_manager/mix.exs
+++ b/clients/double_click_bid_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DoubleClickBidManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/double_click_search/mix.exs b/clients/double_click_search/mix.exs
index 9bb337dff9..97a4f289ac 100644
--- a/clients/double_click_search/mix.exs
+++ b/clients/double_click_search/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DoubleClickSearch.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/drive/mix.exs b/clients/drive/mix.exs
index 01001d8eaf..3c2c9df100 100644
--- a/clients/drive/mix.exs
+++ b/clients/drive/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Drive.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/drive_activity/mix.exs b/clients/drive_activity/mix.exs
index 50eb0089a0..a2cf4e2a88 100644
--- a/clients/drive_activity/mix.exs
+++ b/clients/drive_activity/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.DriveActivity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/essential_contacts/mix.exs b/clients/essential_contacts/mix.exs
index df0e2703e2..488f36bef4 100644
--- a/clients/essential_contacts/mix.exs
+++ b/clients/essential_contacts/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.EssentialContacts.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/eventarc/mix.exs b/clients/eventarc/mix.exs
index 6a1fb31653..4d67aaeb6c 100644
--- a/clients/eventarc/mix.exs
+++ b/clients/eventarc/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Eventarc.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fact_check_tools/mix.exs b/clients/fact_check_tools/mix.exs
index fd8616d807..743642f719 100644
--- a/clients/fact_check_tools/mix.exs
+++ b/clients/fact_check_tools/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FactCheckTools.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fcm/mix.exs b/clients/fcm/mix.exs
index 0729c93253..b2a9cfc9bb 100644
--- a/clients/fcm/mix.exs
+++ b/clients/fcm/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FCM.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fcm_data/mix.exs b/clients/fcm_data/mix.exs
index 8cd5bd1338..c72e9a8f5a 100644
--- a/clients/fcm_data/mix.exs
+++ b/clients/fcm_data/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FCMData.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/file/mix.exs b/clients/file/mix.exs
index 8570714f7e..6bb927504c 100644
--- a/clients/file/mix.exs
+++ b/clients/file/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.File.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase/mix.exs b/clients/firebase/mix.exs
index 2962410385..0c302a2452 100644
--- a/clients/firebase/mix.exs
+++ b/clients/firebase/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Firebase.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_app_check/mix.exs b/clients/firebase_app_check/mix.exs
index ab74890608..312d286bd0 100644
--- a/clients/firebase_app_check/mix.exs
+++ b/clients/firebase_app_check/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseAppCheck.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_database/mix.exs b/clients/firebase_database/mix.exs
index 57137c76e7..8465e64023 100644
--- a/clients/firebase_database/mix.exs
+++ b/clients/firebase_database/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseDatabase.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_dynamic_links/mix.exs b/clients/firebase_dynamic_links/mix.exs
index af453c8358..713d40ac26 100644
--- a/clients/firebase_dynamic_links/mix.exs
+++ b/clients/firebase_dynamic_links/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseDynamicLinks.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_hosting/mix.exs b/clients/firebase_hosting/mix.exs
index 1b5ae1b003..a8bccdb03f 100644
--- a/clients/firebase_hosting/mix.exs
+++ b/clients/firebase_hosting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseHosting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_ml/mix.exs b/clients/firebase_ml/mix.exs
index 3e66e2d637..32dffd9a7c 100644
--- a/clients/firebase_ml/mix.exs
+++ b/clients/firebase_ml/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseML.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_rules/mix.exs b/clients/firebase_rules/mix.exs
index 2ea68392b2..5ec005af11 100644
--- a/clients/firebase_rules/mix.exs
+++ b/clients/firebase_rules/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseRules.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firebase_storage/mix.exs b/clients/firebase_storage/mix.exs
index d233e0956c..04a722fe7e 100644
--- a/clients/firebase_storage/mix.exs
+++ b/clients/firebase_storage/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FirebaseStorage.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/firestore/mix.exs b/clients/firestore/mix.exs
index ef2a9a3a69..eb5e7de160 100644
--- a/clients/firestore/mix.exs
+++ b/clients/firestore/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Firestore.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fitness/mix.exs b/clients/fitness/mix.exs
index 8bee9a1725..67052cfec1 100644
--- a/clients/fitness/mix.exs
+++ b/clients/fitness/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Fitness.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fonts/mix.exs b/clients/fonts/mix.exs
index 6b4dafd9af..ae4ec32ea4 100644
--- a/clients/fonts/mix.exs
+++ b/clients/fonts/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Fonts.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/forms/mix.exs b/clients/forms/mix.exs
index 87ea748981..a2e99114ef 100644
--- a/clients/forms/mix.exs
+++ b/clients/forms/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Forms.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/fusion_tables/mix.exs b/clients/fusion_tables/mix.exs
index 455d8a7222..de64e8cb82 100644
--- a/clients/fusion_tables/mix.exs
+++ b/clients/fusion_tables/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.FusionTables.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/game_services/mix.exs b/clients/game_services/mix.exs
index 24afbc961b..cdd5ee5c75 100644
--- a/clients/game_services/mix.exs
+++ b/clients/game_services/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GameServices.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/games/mix.exs b/clients/games/mix.exs
index 946963ecc0..fbd36f7e78 100644
--- a/clients/games/mix.exs
+++ b/clients/games/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Games.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/games_configuration/mix.exs b/clients/games_configuration/mix.exs
index 4f736b3e9b..e8af77b228 100644
--- a/clients/games_configuration/mix.exs
+++ b/clients/games_configuration/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GamesConfiguration.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/games_management/mix.exs b/clients/games_management/mix.exs
index 32e6841f7d..3a145ea03c 100644
--- a/clients/games_management/mix.exs
+++ b/clients/games_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GamesManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/gax/mix.exs b/clients/gax/mix.exs
index b654b6cc49..bcde5aafb4 100644
--- a/clients/gax/mix.exs
+++ b/clients/gax/mix.exs
@@ -29,7 +29,7 @@ defmodule GoogleApi.Gax.MixProject do
       {:tesla, "~> 1.2"},
       {:mime, "~> 1.0"},
       {:poison, ">= 3.0.0 and < 5.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev},
+      {:ex_doc, "~> 0.28", only: :dev},
       {:dialyxir, "~> 0.5", only: [:dev], runtime: false}
     ]
   end
diff --git a/clients/genomics/mix.exs b/clients/genomics/mix.exs
index 47d0acd24d..6579df197c 100644
--- a/clients/genomics/mix.exs
+++ b/clients/genomics/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Genomics.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/gke_backup/mix.exs b/clients/gke_backup/mix.exs
index e5a2ccb39a..1f371b7678 100644
--- a/clients/gke_backup/mix.exs
+++ b/clients/gke_backup/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GKEBackup.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/gke_hub/mix.exs b/clients/gke_hub/mix.exs
index fd0bb1341f..042d7332bf 100644
--- a/clients/gke_hub/mix.exs
+++ b/clients/gke_hub/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GKEHub.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/gmail/mix.exs b/clients/gmail/mix.exs
index 57c0347434..6152f010e1 100644
--- a/clients/gmail/mix.exs
+++ b/clients/gmail/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Gmail.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/gmail_postmaster_tools/mix.exs b/clients/gmail_postmaster_tools/mix.exs
index b52e99b6c5..0a28222c05 100644
--- a/clients/gmail_postmaster_tools/mix.exs
+++ b/clients/gmail_postmaster_tools/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GmailPostmasterTools.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/groups_migration/mix.exs b/clients/groups_migration/mix.exs
index d0d35358bf..b936ac07b0 100644
--- a/clients/groups_migration/mix.exs
+++ b/clients/groups_migration/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GroupsMigration.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/groups_settings/mix.exs b/clients/groups_settings/mix.exs
index a28923415c..f357e7a1f6 100644
--- a/clients/groups_settings/mix.exs
+++ b/clients/groups_settings/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.GroupsSettings.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/health_care/mix.exs b/clients/health_care/mix.exs
index 7f232d739f..2a48fdc5b6 100644
--- a/clients/health_care/mix.exs
+++ b/clients/health_care/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.HealthCare.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/home_graph/mix.exs b/clients/home_graph/mix.exs
index 7b837e34df..47aefdfcc0 100644
--- a/clients/home_graph/mix.exs
+++ b/clients/home_graph/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.HomeGraph.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/iam/mix.exs b/clients/iam/mix.exs
index 2738ae1f1a..76e10f084f 100644
--- a/clients/iam/mix.exs
+++ b/clients/iam/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IAM.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/iam_credentials/mix.exs b/clients/iam_credentials/mix.exs
index a256cfc0e8..afb662368c 100644
--- a/clients/iam_credentials/mix.exs
+++ b/clients/iam_credentials/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IAMCredentials.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/iap/mix.exs b/clients/iap/mix.exs
index bc093ab38f..264e87fc20 100644
--- a/clients/iap/mix.exs
+++ b/clients/iap/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IAP.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/idea_hub/mix.exs b/clients/idea_hub/mix.exs
index 35bbe5ad56..ed8ba56927 100644
--- a/clients/idea_hub/mix.exs
+++ b/clients/idea_hub/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IdeaHub.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/identity_toolkit/mix.exs b/clients/identity_toolkit/mix.exs
index 07b8c390ab..cad0fab0ae 100644
--- a/clients/identity_toolkit/mix.exs
+++ b/clients/identity_toolkit/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IdentityToolkit.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/ids/mix.exs b/clients/ids/mix.exs
index a9b4670c50..3bd8640771 100644
--- a/clients/ids/mix.exs
+++ b/clients/ids/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.IDS.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/indexing/mix.exs b/clients/indexing/mix.exs
index 4282a489f0..242513b12f 100644
--- a/clients/indexing/mix.exs
+++ b/clients/indexing/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Indexing.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/jobs/mix.exs b/clients/jobs/mix.exs
index fc67eed3f5..53af68d5d5 100644
--- a/clients/jobs/mix.exs
+++ b/clients/jobs/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Jobs.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/keep/mix.exs b/clients/keep/mix.exs
index 661555e19e..77f8978d38 100644
--- a/clients/keep/mix.exs
+++ b/clients/keep/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Keep.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/knowledge_graph_search/mix.exs b/clients/knowledge_graph_search/mix.exs
index 775d7e3411..16f4725c56 100644
--- a/clients/knowledge_graph_search/mix.exs
+++ b/clients/knowledge_graph_search/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.KnowledgeGraphSearch.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/language/mix.exs b/clients/language/mix.exs
index b7346aabc0..15ff17e6be 100644
--- a/clients/language/mix.exs
+++ b/clients/language/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Language.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/library_agent/mix.exs b/clients/library_agent/mix.exs
index 227e1bbba8..7d2c84b1d7 100644
--- a/clients/library_agent/mix.exs
+++ b/clients/library_agent/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.LibraryAgent.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/licensing/mix.exs b/clients/licensing/mix.exs
index b29019e757..06a73b9a73 100644
--- a/clients/licensing/mix.exs
+++ b/clients/licensing/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Licensing.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/life_sciences/mix.exs b/clients/life_sciences/mix.exs
index 648f707102..1409f334cc 100644
--- a/clients/life_sciences/mix.exs
+++ b/clients/life_sciences/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.LifeSciences.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/local_services/mix.exs b/clients/local_services/mix.exs
index 15615a6a7b..2594dd7748 100644
--- a/clients/local_services/mix.exs
+++ b/clients/local_services/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.LocalServices.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/logging/mix.exs b/clients/logging/mix.exs
index a517c473de..085359af8c 100644
--- a/clients/logging/mix.exs
+++ b/clients/logging/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Logging.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/machine_learning/mix.exs b/clients/machine_learning/mix.exs
index 6958804cf9..1bba6b258f 100644
--- a/clients/machine_learning/mix.exs
+++ b/clients/machine_learning/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MachineLearning.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/managed_identities/mix.exs b/clients/managed_identities/mix.exs
index 71209132f1..7084d0c60d 100644
--- a/clients/managed_identities/mix.exs
+++ b/clients/managed_identities/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ManagedIdentities.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/manufacturers/mix.exs b/clients/manufacturers/mix.exs
index b88c724480..a541e38876 100644
--- a/clients/manufacturers/mix.exs
+++ b/clients/manufacturers/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Manufacturers.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/memcache/mix.exs b/clients/memcache/mix.exs
index 51f0ce9ad2..73f5df1d5e 100644
--- a/clients/memcache/mix.exs
+++ b/clients/memcache/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Memcache.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/metastore/mix.exs b/clients/metastore/mix.exs
index 888ca1fa47..c54eb634e5 100644
--- a/clients/metastore/mix.exs
+++ b/clients/metastore/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Metastore.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/mirror/mix.exs b/clients/mirror/mix.exs
index 561143d740..7d2d51d840 100644
--- a/clients/mirror/mix.exs
+++ b/clients/mirror/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Mirror.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/monitoring/mix.exs b/clients/monitoring/mix.exs
index 12e7350fc8..33c271e1e9 100644
--- a/clients/monitoring/mix.exs
+++ b/clients/monitoring/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Monitoring.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_account_management/mix.exs b/clients/my_business_account_management/mix.exs
index ff6730a794..79bce74fce 100644
--- a/clients/my_business_account_management/mix.exs
+++ b/clients/my_business_account_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessAccountManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_business_calls/mix.exs b/clients/my_business_business_calls/mix.exs
index db1977629f..dfa6039a79 100644
--- a/clients/my_business_business_calls/mix.exs
+++ b/clients/my_business_business_calls/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessBusinessCalls.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_business_information/mix.exs b/clients/my_business_business_information/mix.exs
index cbf4b5dea2..b5fa1f7dc1 100644
--- a/clients/my_business_business_information/mix.exs
+++ b/clients/my_business_business_information/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessBusinessInformation.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_lodging/mix.exs b/clients/my_business_lodging/mix.exs
index 14d2573cbc..3e927c99bd 100644
--- a/clients/my_business_lodging/mix.exs
+++ b/clients/my_business_lodging/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessLodging.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_notifications/mix.exs b/clients/my_business_notifications/mix.exs
index 8aafb789c6..727c752703 100644
--- a/clients/my_business_notifications/mix.exs
+++ b/clients/my_business_notifications/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessNotifications.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_place_actions/mix.exs b/clients/my_business_place_actions/mix.exs
index 4fb2af1048..d0a1f5fe98 100644
--- a/clients/my_business_place_actions/mix.exs
+++ b/clients/my_business_place_actions/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessPlaceActions.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_q_and_a/mix.exs b/clients/my_business_q_and_a/mix.exs
index beb657e8cc..8b1d6312d9 100644
--- a/clients/my_business_q_and_a/mix.exs
+++ b/clients/my_business_q_and_a/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessQAndA.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/my_business_verifications/mix.exs b/clients/my_business_verifications/mix.exs
index 91a5e32087..38c87651f5 100644
--- a/clients/my_business_verifications/mix.exs
+++ b/clients/my_business_verifications/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.MyBusinessVerifications.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/network_connectivity/mix.exs b/clients/network_connectivity/mix.exs
index a26fe314e1..477a9e2c85 100644
--- a/clients/network_connectivity/mix.exs
+++ b/clients/network_connectivity/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.NetworkConnectivity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/network_management/mix.exs b/clients/network_management/mix.exs
index 7bbb0a3d2f..1943dc8eda 100644
--- a/clients/network_management/mix.exs
+++ b/clients/network_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.NetworkManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/network_security/mix.exs b/clients/network_security/mix.exs
index 767f70966d..5aaeee6e85 100644
--- a/clients/network_security/mix.exs
+++ b/clients/network_security/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.NetworkSecurity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/network_services/mix.exs b/clients/network_services/mix.exs
index fbc2627e88..2b5fff28bf 100644
--- a/clients/network_services/mix.exs
+++ b/clients/network_services/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.NetworkServices.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/notebooks/mix.exs b/clients/notebooks/mix.exs
index 45060df9a1..5c2124c678 100644
--- a/clients/notebooks/mix.exs
+++ b/clients/notebooks/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Notebooks.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/o_auth2/mix.exs b/clients/o_auth2/mix.exs
index 76aa40274d..bb47b5a00a 100644
--- a/clients/o_auth2/mix.exs
+++ b/clients/o_auth2/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.OAuth2.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/on_demand_scanning/mix.exs b/clients/on_demand_scanning/mix.exs
index 093a0631e8..12e995b352 100644
--- a/clients/on_demand_scanning/mix.exs
+++ b/clients/on_demand_scanning/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.OnDemandScanning.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/org_policy/mix.exs b/clients/org_policy/mix.exs
index 8eb829134e..0be2565b80 100644
--- a/clients/org_policy/mix.exs
+++ b/clients/org_policy/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.OrgPolicy.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/os_config/mix.exs b/clients/os_config/mix.exs
index 31a1249c81..a3c9dd459a 100644
--- a/clients/os_config/mix.exs
+++ b/clients/os_config/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.OSConfig.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/os_login/mix.exs b/clients/os_login/mix.exs
index 101588d0fc..b6ea48d287 100644
--- a/clients/os_login/mix.exs
+++ b/clients/os_login/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.OSLogin.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/page_speed_online/mix.exs b/clients/page_speed_online/mix.exs
index e314e97b6d..205fbedac3 100644
--- a/clients/page_speed_online/mix.exs
+++ b/clients/page_speed_online/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PageSpeedOnline.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/partners/mix.exs b/clients/partners/mix.exs
index 582c265a1c..377138bc53 100644
--- a/clients/partners/mix.exs
+++ b/clients/partners/mix.exs
@@ -23,7 +23,7 @@ defmodule GoogleApi.Partners.V2.Mixfile do
   defp deps() do
     [
       {:google_gax, "~> 0.1.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/payments_reseller_subscription/mix.exs b/clients/payments_reseller_subscription/mix.exs
index 2634e305da..aefad6bd78 100644
--- a/clients/payments_reseller_subscription/mix.exs
+++ b/clients/payments_reseller_subscription/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PaymentsResellerSubscription.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/people/mix.exs b/clients/people/mix.exs
index 357662b237..1857af7300 100644
--- a/clients/people/mix.exs
+++ b/clients/people/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.People.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/play_custom_app/mix.exs b/clients/play_custom_app/mix.exs
index 58ee05165e..e351d1431b 100644
--- a/clients/play_custom_app/mix.exs
+++ b/clients/play_custom_app/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PlayCustomApp.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/play_developer_reporting/mix.exs b/clients/play_developer_reporting/mix.exs
index 98682256c2..a42c36c643 100644
--- a/clients/play_developer_reporting/mix.exs
+++ b/clients/play_developer_reporting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PlayDeveloperReporting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/play_integrity/mix.exs b/clients/play_integrity/mix.exs
index 608d99014f..704e475192 100644
--- a/clients/play_integrity/mix.exs
+++ b/clients/play_integrity/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PlayIntegrity.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/play_movies_partner/mix.exs b/clients/play_movies_partner/mix.exs
index e310c2d50f..68bc110c55 100644
--- a/clients/play_movies_partner/mix.exs
+++ b/clients/play_movies_partner/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.PlayMoviesPartner.V1.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/playable_locations/mix.exs b/clients/playable_locations/mix.exs
index ad361f2e23..b8dd64b247 100644
--- a/clients/playable_locations/mix.exs
+++ b/clients/playable_locations/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PlayableLocations.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/plus/mix.exs b/clients/plus/mix.exs
index ae0f48e70b..cad4e7f377 100644
--- a/clients/plus/mix.exs
+++ b/clients/plus/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Plus.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/plus_domains/mix.exs b/clients/plus_domains/mix.exs
index 1f09a532ae..57c93e1019 100644
--- a/clients/plus_domains/mix.exs
+++ b/clients/plus_domains/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PlusDomains.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/policy_analyzer/mix.exs b/clients/policy_analyzer/mix.exs
index 622541f773..dbe65a0293 100644
--- a/clients/policy_analyzer/mix.exs
+++ b/clients/policy_analyzer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PolicyAnalyzer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/policy_simulator/mix.exs b/clients/policy_simulator/mix.exs
index f37ad99484..d33187eb84 100644
--- a/clients/policy_simulator/mix.exs
+++ b/clients/policy_simulator/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PolicySimulator.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/policy_troubleshooter/mix.exs b/clients/policy_troubleshooter/mix.exs
index 1981f184fd..ec70e8391a 100644
--- a/clients/policy_troubleshooter/mix.exs
+++ b/clients/policy_troubleshooter/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PolicyTroubleshooter.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/poly/mix.exs b/clients/poly/mix.exs
index 497d17af5d..125c12dc2d 100644
--- a/clients/poly/mix.exs
+++ b/clients/poly/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Poly.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/prediction/mix.exs b/clients/prediction/mix.exs
index cf2c804dda..3ce9100efc 100644
--- a/clients/prediction/mix.exs
+++ b/clients/prediction/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.Prediction.V16.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/private_ca/mix.exs b/clients/private_ca/mix.exs
index 8b4c886a8d..b7e6771769 100644
--- a/clients/private_ca/mix.exs
+++ b/clients/private_ca/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PrivateCA.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/proximity_beacon/mix.exs b/clients/proximity_beacon/mix.exs
index b9486f1543..04617112ec 100644
--- a/clients/proximity_beacon/mix.exs
+++ b/clients/proximity_beacon/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ProximityBeacon.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/pub_sub/mix.exs b/clients/pub_sub/mix.exs
index 1f19d11a75..5a418558ce 100644
--- a/clients/pub_sub/mix.exs
+++ b/clients/pub_sub/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PubSub.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/pub_sub_lite/mix.exs b/clients/pub_sub_lite/mix.exs
index 97845dcbdd..b836e524d1 100644
--- a/clients/pub_sub_lite/mix.exs
+++ b/clients/pub_sub_lite/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.PubSubLite.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/qpx_express/mix.exs b/clients/qpx_express/mix.exs
index e1a6d0d262..f2765588d8 100644
--- a/clients/qpx_express/mix.exs
+++ b/clients/qpx_express/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.QPXExpress.V1.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/real_time_bidding/mix.exs b/clients/real_time_bidding/mix.exs
index 1d26a5b5f1..50f4e5e0f9 100644
--- a/clients/real_time_bidding/mix.exs
+++ b/clients/real_time_bidding/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.RealTimeBidding.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/recaptcha_enterprise/mix.exs b/clients/recaptcha_enterprise/mix.exs
index 2b2029bbc0..bdb75440fc 100644
--- a/clients/recaptcha_enterprise/mix.exs
+++ b/clients/recaptcha_enterprise/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.RecaptchaEnterprise.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/recommendation_engine/mix.exs b/clients/recommendation_engine/mix.exs
index 3ee733f77a..e518677bb0 100644
--- a/clients/recommendation_engine/mix.exs
+++ b/clients/recommendation_engine/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.RecommendationEngine.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/recommender/mix.exs b/clients/recommender/mix.exs
index f56a46696d..25417575cf 100644
--- a/clients/recommender/mix.exs
+++ b/clients/recommender/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Recommender.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/redis/mix.exs b/clients/redis/mix.exs
index 5d168887a6..0cca8cc24e 100644
--- a/clients/redis/mix.exs
+++ b/clients/redis/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Redis.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/remote_build_execution/mix.exs b/clients/remote_build_execution/mix.exs
index 4e5cb11071..a63f961b5a 100644
--- a/clients/remote_build_execution/mix.exs
+++ b/clients/remote_build_execution/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.RemoteBuildExecution.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/replica_pool/mix.exs b/clients/replica_pool/mix.exs
index 6d29ba10ef..7409c5ce38 100644
--- a/clients/replica_pool/mix.exs
+++ b/clients/replica_pool/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ReplicaPool.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/replica_pool_updater/mix.exs b/clients/replica_pool_updater/mix.exs
index aba155bde1..e6f051bc43 100644
--- a/clients/replica_pool_updater/mix.exs
+++ b/clients/replica_pool_updater/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.ReplicaPoolUpdater.V1beta1.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/reseller/mix.exs b/clients/reseller/mix.exs
index c456867037..62f1ff49f2 100644
--- a/clients/reseller/mix.exs
+++ b/clients/reseller/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Reseller.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/resource_settings/mix.exs b/clients/resource_settings/mix.exs
index 15a3359567..bfe92f74e8 100644
--- a/clients/resource_settings/mix.exs
+++ b/clients/resource_settings/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ResourceSettings.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/resource_views/mix.exs b/clients/resource_views/mix.exs
index fd09c27819..9679c2d65e 100644
--- a/clients/resource_views/mix.exs
+++ b/clients/resource_views/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.ResourceViews.V1beta2.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/retail/mix.exs b/clients/retail/mix.exs
index 80fcf139a9..699bfce7ca 100644
--- a/clients/retail/mix.exs
+++ b/clients/retail/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Retail.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/run/mix.exs b/clients/run/mix.exs
index d093717962..999e567b87 100644
--- a/clients/run/mix.exs
+++ b/clients/run/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Run.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/runtime_config/mix.exs b/clients/runtime_config/mix.exs
index 2037f3d801..2177cfd2fd 100644
--- a/clients/runtime_config/mix.exs
+++ b/clients/runtime_config/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.RuntimeConfig.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/safe_browsing/mix.exs b/clients/safe_browsing/mix.exs
index 2bac92b4d6..cebdd4d6c9 100644
--- a/clients/safe_browsing/mix.exs
+++ b/clients/safe_browsing/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SafeBrowsing.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/sas_portal/mix.exs b/clients/sas_portal/mix.exs
index f0137cbe3c..b7445b35e6 100644
--- a/clients/sas_portal/mix.exs
+++ b/clients/sas_portal/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SASPortal.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/script/mix.exs b/clients/script/mix.exs
index 096def9840..34e50f5169 100644
--- a/clients/script/mix.exs
+++ b/clients/script/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Script.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/search_console/mix.exs b/clients/search_console/mix.exs
index 793b29cfaa..0f83939c64 100644
--- a/clients/search_console/mix.exs
+++ b/clients/search_console/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SearchConsole.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/secret_manager/mix.exs b/clients/secret_manager/mix.exs
index 9abf05e9a4..8ace119ad7 100644
--- a/clients/secret_manager/mix.exs
+++ b/clients/secret_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SecretManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/security_center/mix.exs b/clients/security_center/mix.exs
index 04b6fce222..87b2617f62 100644
--- a/clients/security_center/mix.exs
+++ b/clients/security_center/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SecurityCenter.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_broker/mix.exs b/clients/service_broker/mix.exs
index ca081b38e3..85529ef1de 100644
--- a/clients/service_broker/mix.exs
+++ b/clients/service_broker/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceBroker.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_consumer_management/mix.exs b/clients/service_consumer_management/mix.exs
index 51e9a673b5..3284ecec58 100644
--- a/clients/service_consumer_management/mix.exs
+++ b/clients/service_consumer_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceConsumerManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_control/mix.exs b/clients/service_control/mix.exs
index 2c08a1d890..6a087fe7cb 100644
--- a/clients/service_control/mix.exs
+++ b/clients/service_control/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceControl.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_directory/mix.exs b/clients/service_directory/mix.exs
index 773f8ccf65..b317ff4868 100644
--- a/clients/service_directory/mix.exs
+++ b/clients/service_directory/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceDirectory.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_management/mix.exs b/clients/service_management/mix.exs
index d9dccd13e6..86f2b1afff 100644
--- a/clients/service_management/mix.exs
+++ b/clients/service_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_networking/mix.exs b/clients/service_networking/mix.exs
index 466f34c671..7376e48f20 100644
--- a/clients/service_networking/mix.exs
+++ b/clients/service_networking/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceNetworking.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_usage/mix.exs b/clients/service_usage/mix.exs
index caddef988e..0d023514ac 100644
--- a/clients/service_usage/mix.exs
+++ b/clients/service_usage/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceUsage.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/service_user/mix.exs b/clients/service_user/mix.exs
index d17301d9f2..cfc06da15d 100644
--- a/clients/service_user/mix.exs
+++ b/clients/service_user/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ServiceUser.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/sheets/mix.exs b/clients/sheets/mix.exs
index c5652dc9bb..b509c9173b 100644
--- a/clients/sheets/mix.exs
+++ b/clients/sheets/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Sheets.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/site_verification/mix.exs b/clients/site_verification/mix.exs
index 145ed17280..2b4a2141af 100644
--- a/clients/site_verification/mix.exs
+++ b/clients/site_verification/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SiteVerification.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/slides/mix.exs b/clients/slides/mix.exs
index 1821b382ef..7feb7101fe 100644
--- a/clients/slides/mix.exs
+++ b/clients/slides/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Slides.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/smart_device_management/mix.exs b/clients/smart_device_management/mix.exs
index dcd9acd8b6..1da115aa9a 100644
--- a/clients/smart_device_management/mix.exs
+++ b/clients/smart_device_management/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SmartDeviceManagement.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/source_repo/mix.exs b/clients/source_repo/mix.exs
index 4e80289edf..86db51018b 100644
--- a/clients/source_repo/mix.exs
+++ b/clients/source_repo/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SourceRepo.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/spanner/mix.exs b/clients/spanner/mix.exs
index 462cfaebf3..15cb55f497 100644
--- a/clients/spanner/mix.exs
+++ b/clients/spanner/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Spanner.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/spectrum/mix.exs b/clients/spectrum/mix.exs
index b5772843c5..43cf3d320e 100644
--- a/clients/spectrum/mix.exs
+++ b/clients/spectrum/mix.exs
@@ -23,7 +23,7 @@ defmodule GoogleApi.Spectrum.V1explorer.Mixfile do
   defp deps() do
     [
       {:google_gax, "~> 0.1.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/speech/mix.exs b/clients/speech/mix.exs
index 3b43fe2cfb..a19ba204af 100644
--- a/clients/speech/mix.exs
+++ b/clients/speech/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Speech.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/sql_admin/mix.exs b/clients/sql_admin/mix.exs
index ddc786f305..58e1d2897d 100644
--- a/clients/sql_admin/mix.exs
+++ b/clients/sql_admin/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.SQLAdmin.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/storage/mix.exs b/clients/storage/mix.exs
index e2da63907d..22918dd931 100644
--- a/clients/storage/mix.exs
+++ b/clients/storage/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Storage.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/storage_transfer/mix.exs b/clients/storage_transfer/mix.exs
index 6a5755beab..d5bda1cb88 100644
--- a/clients/storage_transfer/mix.exs
+++ b/clients/storage_transfer/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.StorageTransfer.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/street_view_publish/mix.exs b/clients/street_view_publish/mix.exs
index 3f50f9bb60..00dcc7e026 100644
--- a/clients/street_view_publish/mix.exs
+++ b/clients/street_view_publish/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.StreetViewPublish.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/sts/mix.exs b/clients/sts/mix.exs
index e35bbc37a7..3f0f28615a 100644
--- a/clients/sts/mix.exs
+++ b/clients/sts/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.STS.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/surveys/mix.exs b/clients/surveys/mix.exs
index eaf196530a..ba01bf7731 100644
--- a/clients/surveys/mix.exs
+++ b/clients/surveys/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Surveys.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/tag_manager/mix.exs b/clients/tag_manager/mix.exs
index e55427913b..64b839e446 100644
--- a/clients/tag_manager/mix.exs
+++ b/clients/tag_manager/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.TagManager.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/task_queue/mix.exs b/clients/task_queue/mix.exs
index b48229cd85..d27ec78ea0 100644
--- a/clients/task_queue/mix.exs
+++ b/clients/task_queue/mix.exs
@@ -22,7 +22,7 @@ defmodule GoogleApi.TaskQueue.V1beta2.Mixfile do
     [
       {:tesla, "~> 0.8"},
       {:poison, ">= 1.0.0"},
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/tasks/mix.exs b/clients/tasks/mix.exs
index 1ca2d10bc1..0a3a38eb4b 100644
--- a/clients/tasks/mix.exs
+++ b/clients/tasks/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Tasks.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/test_client/mix.exs b/clients/test_client/mix.exs
index 2e0646b26b..d3d0aecb48 100644
--- a/clients/test_client/mix.exs
+++ b/clients/test_client/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.TestClient.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/testing/mix.exs b/clients/testing/mix.exs
index 356055d2e6..ec7d2b79cd 100644
--- a/clients/testing/mix.exs
+++ b/clients/testing/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Testing.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/text_to_speech/mix.exs b/clients/text_to_speech/mix.exs
index 4c2b7c5a96..a8ef7f7653 100644
--- a/clients/text_to_speech/mix.exs
+++ b/clients/text_to_speech/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.TextToSpeech.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/tool_results/mix.exs b/clients/tool_results/mix.exs
index 26805d49f8..67bf47e57a 100644
--- a/clients/tool_results/mix.exs
+++ b/clients/tool_results/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.ToolResults.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/tpu/mix.exs b/clients/tpu/mix.exs
index 8a734190f0..535067ca6d 100644
--- a/clients/tpu/mix.exs
+++ b/clients/tpu/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.TPU.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/transcoder/mix.exs b/clients/transcoder/mix.exs
index 458d06df49..6fea860c6c 100644
--- a/clients/transcoder/mix.exs
+++ b/clients/transcoder/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Transcoder.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/translate/mix.exs b/clients/translate/mix.exs
index abdedd018c..a2ac32a674 100644
--- a/clients/translate/mix.exs
+++ b/clients/translate/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Translate.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/url_shortener/mix.exs b/clients/url_shortener/mix.exs
index 6d1e3c529c..2635fbd9eb 100644
--- a/clients/url_shortener/mix.exs
+++ b/clients/url_shortener/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.UrlShortener.Mixfile do
     [
       {:google_gax, "~> 0.2"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/vault/mix.exs b/clients/vault/mix.exs
index 433651d0dd..d8b48b232f 100644
--- a/clients/vault/mix.exs
+++ b/clients/vault/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Vault.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/vector_tile/mix.exs b/clients/vector_tile/mix.exs
index 5e779523dd..b688a549f0 100644
--- a/clients/vector_tile/mix.exs
+++ b/clients/vector_tile/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.VectorTile.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/verified_access/mix.exs b/clients/verified_access/mix.exs
index 211ea6430c..b96f8bff70 100644
--- a/clients/verified_access/mix.exs
+++ b/clients/verified_access/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.VerifiedAccess.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/version_history/mix.exs b/clients/version_history/mix.exs
index 9374ccf4ab..68ec82b8cd 100644
--- a/clients/version_history/mix.exs
+++ b/clients/version_history/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.VersionHistory.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/video_intelligence/mix.exs b/clients/video_intelligence/mix.exs
index 599c682e29..1489fbe6a9 100644
--- a/clients/video_intelligence/mix.exs
+++ b/clients/video_intelligence/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.VideoIntelligence.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/vision/mix.exs b/clients/vision/mix.exs
index 5c4f4ff4a0..0d8b04a2e9 100644
--- a/clients/vision/mix.exs
+++ b/clients/vision/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Vision.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/vm_migration/mix.exs b/clients/vm_migration/mix.exs
index 6fd1522758..6da6c70316 100644
--- a/clients/vm_migration/mix.exs
+++ b/clients/vm_migration/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.VMMigration.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/web_fonts/mix.exs b/clients/web_fonts/mix.exs
index 43e1635fa3..474350fe88 100644
--- a/clients/web_fonts/mix.exs
+++ b/clients/web_fonts/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.WebFonts.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/web_risk/mix.exs b/clients/web_risk/mix.exs
index 8fd85d3685..196ed947c3 100644
--- a/clients/web_risk/mix.exs
+++ b/clients/web_risk/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.WebRisk.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/web_security_scanner/mix.exs b/clients/web_security_scanner/mix.exs
index 2ae12f7001..2fd87c4e4f 100644
--- a/clients/web_security_scanner/mix.exs
+++ b/clients/web_security_scanner/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.WebSecurityScanner.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/webmaster/mix.exs b/clients/webmaster/mix.exs
index 855ba166fb..cf702144a9 100644
--- a/clients/webmaster/mix.exs
+++ b/clients/webmaster/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Webmaster.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/workflow_executions/mix.exs b/clients/workflow_executions/mix.exs
index 8dbaf75114..eae71e673c 100644
--- a/clients/workflow_executions/mix.exs
+++ b/clients/workflow_executions/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.WorkflowExecutions.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/workflows/mix.exs b/clients/workflows/mix.exs
index 8700cff2df..a9022193f9 100644
--- a/clients/workflows/mix.exs
+++ b/clients/workflows/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.Workflows.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/you_tube/mix.exs b/clients/you_tube/mix.exs
index 57d8ec4233..cd2c009d88 100644
--- a/clients/you_tube/mix.exs
+++ b/clients/you_tube/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.YouTube.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/you_tube_analytics/mix.exs b/clients/you_tube_analytics/mix.exs
index c0daf62569..536b6ca526 100644
--- a/clients/you_tube_analytics/mix.exs
+++ b/clients/you_tube_analytics/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.YouTubeAnalytics.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end
 
diff --git a/clients/you_tube_reporting/mix.exs b/clients/you_tube_reporting/mix.exs
index 348dab1a60..332dc20041 100644
--- a/clients/you_tube_reporting/mix.exs
+++ b/clients/you_tube_reporting/mix.exs
@@ -42,7 +42,7 @@ defmodule GoogleApi.YouTubeReporting.Mixfile do
     [
       {:google_gax, "~> 0.4"},
 
-      {:ex_doc, "~> 0.16", only: :dev}
+      {:ex_doc, "~> 0.28", only: :dev}
     ]
   end