diff --git a/Gemfile b/Gemfile
index 8e06a0c7..f525a919 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
-gem 'rack'
+gem 'rack', '>= 2.2.11'
 gem 'puma'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7bc119c5..22e043e8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,14 +2,14 @@ GEM
   remote: https://rubygems.org/
   specs:
     puma (3.4.0)
-    rack (1.6.4)
+    rack (3.1.10)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   puma
-  rack
+  rack (>= 2.2.11)
 
 BUNDLED WITH
-   1.11.2
+   1.17.3