diff --git a/mailit/Gemfile.lock b/mailit/Gemfile.lock
index 6a32aa6..81ead09 100644
--- a/mailit/Gemfile.lock
+++ b/mailit/Gemfile.lock
@@ -59,7 +59,7 @@ GEM
     multi_json (1.0.4)
     nokogiri (1.5.0)
     polyglot (0.3.3)
-    rack (1.3.6)
+    rack (1.3.10)
     rack-cache (1.1)
       rack (>= 0.4)
     rack-mount (0.8.3)