diff --git a/Gemfile b/Gemfile
index c40cd45..e7cb904 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source :rubygems
 source "http://gems.github.com"
 
-gem "bundler", "1.0.7"
+gem "bundler", "1.0.21"
 gem "rails", "2.3.14"
 gem "hoptoad_notifier", "2.4.9"
 gem "ambethia-smtp-tls", "1.1.2", :require => "smtp-tls"
diff --git a/Gemfile.lock b/Gemfile.lock
index 6effc32..3ec465c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ PLATFORMS
 
 DEPENDENCIES
   ambethia-smtp-tls (= 1.1.2)
-  bundler (= 1.0.7)
+  bundler (= 1.0.21)
   cucumber (= 0.8.5)
   delayed_job (= 2.0.6)
   factory_girl (= 1.2.3)
--
libgit2 0.21.2