diff --git a/Gemfile.lock b/Gemfile.lock
index 42e8c54..36b3ec9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,8 +50,8 @@ GEM
     multi_json (1.0.3)
     nokogiri (1.5.0)
     polyglot (0.3.3)
-    rack (1.3.5)
-    rack-cache (1.1)
+    rack (1.3.10)
+    rack-cache (1.13.0)
       rack (>= 0.4)
     rack-mount (0.8.3)
       rack (>= 1.0.0)