diff --git a/Gemfile b/Gemfile
index 7d3cff7ddb..ce5e231d06 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'puma', '~> 5.6'
 gem 'rails', '~> 6.1.6'
 gem 'sprockets', '~> 3.7.2'
 gem 'thor', '~> 1.2'
-gem 'rack', '~> 2.2.3'
+gem 'rack', '~> 2.2.4'
 
 gem 'hamlit-rails', '~> 0.2'
 gem 'pg', '~> 1.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index d35ef988ee..9b61040049 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -475,7 +475,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.4.0)
     racc (1.6.0)
-    rack (2.2.3.1)
+    rack (2.2.4)
     rack-attack (6.6.1)
       rack (>= 1.0, < 3)
     rack-cors (1.1.1)
@@ -807,7 +807,7 @@ DEPENDENCIES
   pry-rails (~> 0.3)
   puma (~> 5.6)
   pundit (~> 2.2)
-  rack (~> 2.2.3)
+  rack (~> 2.2.4)
   rack-attack (~> 6.6)
   rack-cors (~> 1.1)
   rails (~> 6.1.6)