diff --git a/Gemfile.lock b/Gemfile.lock
index 1442a47..45f9d51 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -172,7 +172,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.6.9)
+    rack (1.6.12)
     rack-livereload (0.3.16)
       rack
     rack-test (0.6.3)