diff --git a/Gemfile.lock b/Gemfile.lock
index 3fc0e2f..4691239 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
     pygments.rb (0.5.0)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rack (1.5.2)
+    rack (1.6.11)
     rack-livereload (0.3.15)
       rack
     rack-test (0.6.2)