diff --git a/Gemfile b/Gemfile
index 8d27f6c..633eb9d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'jquery-rails', '~> 4.4.0'
 gem 'loofah', '>= 2.3.1'
 gem 'mimemagic', '~> 0.3.7'
 gem 'nokogiri', '>= 1.13.9'
-gem 'rack', '~> 2.0'
+gem 'rack', '~> 2.2'
 gem 'rails-controller-testing'
 gem 'rails', '5.2.8.1'
 gem 'responders', '~> 2.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index eaed552..ea34d1a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -187,7 +187,7 @@ GEM
     public_suffix (4.0.7)
     raabro (1.4.0)
     racc (1.6.0)
-    rack (2.2.4)
+    rack (2.2.6.2)
     rack-test (2.0.2)
       rack (>= 1.3)
     rails (5.2.8.1)
@@ -355,7 +355,7 @@ DEPENDENCIES
   mimemagic (~> 0.3.7)
   nokogiri (>= 1.13.9)
   pry-rails
-  rack (~> 2.0)
+  rack (~> 2.2)
   rack-test
   rails (= 5.2.8.1)
   rails-controller-testing