diff --git a/examples/log-collection/fluentd/Gemfile.lock b/examples/log-collection/fluentd/Gemfile.lock
index b3e12dc..efcab1c 100644
--- a/examples/log-collection/fluentd/Gemfile.lock
+++ b/examples/log-collection/fluentd/Gemfile.lock
@@ -52,12 +52,12 @@ GEM
       gapic-common (~> 0.3)
       google-cloud-errors (~> 1.0)
       grpc-google-iam-v1 (>= 0.6.10, < 2.0)
-    google-protobuf (3.19.2-x86_64-linux)
+    google-protobuf (3.23.4-x86_64-linux)
     googleapis-common-protos (1.3.11)
       google-protobuf (~> 3.14)
       googleapis-common-protos-types (>= 1.0.6, < 2.0)
       grpc (~> 1.27)
-    googleapis-common-protos-types (1.0.6)
+    googleapis-common-protos-types (1.7.0)
       google-protobuf (~> 3.14)
     googleauth (0.16.0)
       faraday (>= 0.17.3, < 2.0)
@@ -66,8 +66,8 @@ GEM
       multi_json (~> 1.11)
       os (>= 0.9, < 2.0)
       signet (~> 0.14)
-    grpc (1.36.0-x86_64-linux)
-      google-protobuf (~> 3.14)
+    grpc (1.56.2-x86_64-linux)
+      google-protobuf (~> 3.23)
       googleapis-common-protos-types (~> 1.0)
     grpc-google-iam-v1 (0.6.11)
       google-protobuf (~> 3.14)