diff --git a/rails.gemspec b/rails.gemspec
index e3f811966c737f43c3a2abfb9510503ded659ead..db13653ebce7bc8ddfc8fec6f0af2a3553e99027 100644
--- a/rails.gemspec
+++ b/rails.gemspec
@@ -25,5 +25,5 @@
   s.add_dependency('activeresource', version)
   s.add_dependency('actionmailer',   version)
   s.add_dependency('railties',       version)
-  s.add_dependency('bundler',        '>= 1.0.0.beta.5')
+  s.add_dependency('bundler',        '>= 1.0.0.beta.10')
 end