diff --git a/Gemfile.lock b/Gemfile.lock
index 407cc6d96..80f880a26 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,7 +29,7 @@ GEM
     json (1.8.0)
     multi_json (1.8.0)
     mustache (0.99.4)
-    rack (1.5.2)
+    rack (1.6.13)
     rack-protection (1.5.0)
       rack
     rake (10.1.0)