diff --git a/Gemfile.lock b/Gemfile.lock
index 67fa0c0..eb1bf60 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     diff-lcs (1.1.2)
-    rack (1.1.0)
+    rack (3.0.4.2)
     rack-test (0.5.4)
       rack (>= 1.0)
     rspec (2.0.0.beta.9)