diff --git a/Gemfile.lock b/Gemfile.lock
index a3fc3f730..162a6d659 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,7 @@ GEM
     daemons (1.1.4)
     eventmachine (0.12.10)
     nokogiri (1.5.0)
-    rack (1.3.4)
+    rack (1.6.13)
     rack-protection (1.1.2)
       rack
     redcarpet (2.0.0b5)