diff --git a/test/app_config/gemfile-rack/gems.locked b/test/app_config/gemfile-rack/gems.locked
index fd87314..800a3fe 100644
--- a/test/app_config/gemfile-rack/gems.locked
+++ b/test/app_config/gemfile-rack/gems.locked
@@ -1,13 +1,13 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    rack (2.0.6)
+    rack (2.2.8.1)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  rack (~> 2.0)
+  rack (~> 2.2)
 
 BUNDLED WITH
    1.17.3
diff --git a/test/app_config/gemfile-rack/gems.rb b/test/app_config/gemfile-rack/gems.rb
index fbc1b5a..91b1e6c 100644
--- a/test/app_config/gemfile-rack/gems.rb
+++ b/test/app_config/gemfile-rack/gems.rb
@@ -1,2 +1,2 @@
 source 'https://rubygems.org'
-gem 'rack', '~> 2.0'
+gem 'rack', '~> 2.2'