diff --git a/Gemfile.lock b/Gemfile.lock
index 458156f..c9168b6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
     fssm (0.2.7)
     haml (3.1.2)
     i18n (0.6.0)
-    rack (1.3.2)
+    rack (1.6.13)
     rack-test (0.6.0)
       rack (>= 1.0)
     sass (3.1.5)