diff --git a/Gemfile b/Gemfile
index 4137ec786b..57040082c6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,6 @@ group :development do
   gem "rake", "~> 10.0.4"
   gem "shoulda", ">= 0"
   gem "rdoc", "~> 3.12"
-  gem "bundler", "~> 1.2.1"
+  gem "bundler", "~> 1.3.5"
   gem "jeweler", "~> 1.8.3"
 end