diff --git a/Gemfile.lock b/Gemfile.lock
index 3eff1cc..943193d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     nokogiri (1.5.5)
-    rack (1.4.1)
+    rack (1.6.12)
     rack-protection (1.2.0)
       rack
     sinatra (1.3.3)