diff --git a/rails.gemspec b/rails.gemspec
index d791e21ec2..98b5f46554 100644
--- a/rails.gemspec
+++ b/rails.gemspec
@@ -25,5 +25,5 @@ Gem::Specification.new do |s|
   s.add_dependency('activeresource', version)
   s.add_dependency('actionmailer',   version)
   s.add_dependency('railties',       version)
-  s.add_dependency('bundler',        '~> 1.0.3')
+  s.add_dependency('bundler',        '~> 1.0')
 end