diff --git a/Gemfile.lock b/Gemfile.lock
index f372853..8a6529f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,8 +72,8 @@ GEM
     treetop (1.4.9)
       polyglot (>= 0.3.1)
     tzinfo (0.3.27)
-    warden (1.0.3)
-      rack (>= 1.0.0)
+    warden (1.0.4)
+      rack (>= 1.0)
 
 PLATFORMS
   ruby