diff --git a/Gemfile.lock b/Gemfile.lock
index 88c1eb9..614a7dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -124,7 +124,7 @@ GEM
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
-    rack (1.6.1)
+    rack (1.6.12)
     rack-protection (1.5.3)
       rack
     rack-test (0.6.3)