diff --git a/actionpack/actionpack.gemspec b/actionpack/actionpack.gemspec
index 2287f815f77dda598839d0c94eed4f6f72120c5f..d8f1f6442f043665d94ec347e539d8b5c13b07d6 100644
--- a/actionpack/actionpack.gemspec
+++ b/actionpack/actionpack.gemspec
@@ -11,5 +11,5 @@
   s.require_path = 'lib'
 
   s.add_dependency 'activesupport', '= 2.3.18'
-  s.add_dependency 'rack', '~> 1.1.0'
+  s.add_dependency 'rack', '~> 1.4'
 end