diff --git a/Gemfile b/Gemfile
index dc51ba3810..6a72fec549 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gem 'puma', '~> 5.6'
 gem 'rails', '~> 6.1.7'
 gem 'sprockets', '~> 3.7.2'
 gem 'thor', '~> 1.2'
-gem 'rack', '~> 2.2.5'
+gem 'rack', '~> 2.2.6'
 
 gem 'hamlit-rails', '~> 0.2'
 gem 'pg', '~> 1.4'
diff --git a/Gemfile.lock b/Gemfile.lock
index 321c1836bc..efb768d344 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -487,7 +487,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.4.0)
     racc (1.6.2)
-    rack (2.2.5)
+    rack (2.2.6.2)
     rack-attack (6.6.1)
       rack (>= 1.0, < 3)
     rack-cors (1.1.1)
@@ -831,7 +831,7 @@ DEPENDENCIES
   public_suffix (~> 5.0)
   puma (~> 5.6)
   pundit (~> 2.3)
-  rack (~> 2.2.5)
+  rack (~> 2.2.6)
   rack-attack (~> 6.6)
   rack-cors (~> 1.1)
   rack-test (~> 2.0)