diff --git a/Gemfile.lock b/Gemfile.lock
index 2c1a252..6b09264 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ GEM
   specs:
     json (1.5.1)
     newrelic_rpm (3.1.2)
-    rack (1.2.2)
+    rack (1.6.13)
     right_http_connection (1.3.0)
     sinatra (1.2.1)
       rack (~> 1.1)