diff --git a/Gemfile.lock b/Gemfile.lock
index 69788163..a79a7213 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -53,7 +53,7 @@ GEM
       color (>= 1.4.0)
       transaction-simple (~> 1.3)
     pg (0.11.0)
-    rack (1.1.2)
+    rack (1.1.6)
     rails (2.3.8)
       actionmailer (= 2.3.8)
       actionpack (= 2.3.8)