diff --git a/Gemfile.lock b/Gemfile.lock
index 95c236f..a9ef723 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
     openid_active_record_store (1.0.1)
       rails (>= 3)
     polyglot (0.3.3)
-    rack (1.4.1)
+    rack (1.4.7)
     rack-cache (1.2)
       rack (>= 0.4)
     rack-openid (1.3.1)