diff --git a/Gemfile.lock b/Gemfile.lock
index 655bae7..195876e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -32,7 +32,7 @@ GEM
     multi_json (1.3.2)
     multi_xml (0.5.1)
     pg (0.13.2)
-    rack (1.4.1)
+    rack (1.6.13)
     rack-mount (0.8.3)
       rack (>= 1.0.0)
     rack-rewrite (1.2.1)