diff --git a/Gemfile b/Gemfile
index 46d44af67..8d035955f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -109,7 +109,7 @@ gem 'icalendar', '~> 2.4.1'
 
 gem 'bootstrap-datepicker-rails', '~> 1.6.4.1'
 
-gem 'rack', '~> 2.2.3.1'
+gem 'rack', '~> 2.2.6.2'
 
 gem 'rack-cors', require: 'rack/cors'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 5043d9565..b1f263ce3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -359,7 +359,7 @@ GEM
     pundit (1.1.0)
       activesupport (>= 3.0.0)
     racc (1.6.0)
-    rack (2.2.3.1)
+    rack (2.2.6.2)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
     rack-oauth2 (1.21.2)
@@ -702,7 +702,7 @@ DEPENDENCIES
   psych (< 4)
   public_activity (~> 1.6.4)!
   pundit (~> 1.1.0)
-  rack (~> 2.2.3.1)
+  rack (~> 2.2.6.2)
   rack-cors
   rails (~> 5.2.8.1)
   rails-assets-clipboard (~> 1.5.12)!