diff --git a/Gemfile.lock b/Gemfile.lock
index 4a54e80..e3ba952 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     one_sky (2.0.1)
       json (>= 1.4.0)
       rest-client (>= 1.4.0)
-    rack (1.4.1)
+    rack (1.6.13)
     rack-protection (1.2.0)
       rack
     rest-client (1.6.7)