diff --git a/Gemfile.lock b/Gemfile.lock
index 8b493eb..6cb5384 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
       multi_json (~> 1.0)
     hike (1.2.1)
     multi_json (1.3.4)
-    rack (1.4.1)
+    rack (1.6.13)
     rake (0.9.2.2)
     sprockets (2.4.2)
       hike (~> 1.2)