diff --git a/Gemfile.lock b/Gemfile.lock
index a6dbbce..5c167c6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -52,7 +52,7 @@ GEM
     multipart-post (1.1.3)
     oauth (0.4.5)
     polyglot (0.3.2)
-    rack (1.2.3)
+    rack (1.2.8)
     rack-mount (0.6.14)
       rack (>= 1.0.0)
     rack-test (0.5.7)