diff --git a/Gemfile b/Gemfile
index 64eb531e1..fe40ba65a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source :rubygems
 
-gem 'rack', '~> 1.2.2'
+gem 'rack', '~> 2.2.11'
 gem 'rails', '~> 3.0.6'
 gem 'json', '~> 1.5.1'
 gem 'plucky', '~> 0.3.6'