diff --git a/Gemfile.lock b/Gemfile.lock
index 49d460d..1179db9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,7 +77,7 @@ GEM
     polyglot (0.3.2)
     powder (0.1.6)
       thor (>= 0.11.5)
-    rack (1.3.4)
+    rack (1.3.3)
     rack-cache (1.0.3)
       rack (>= 0.4)
     rack-mount (0.8.3)