diff --git a/Gemfile.lock b/Gemfile.lock
index e6c33b5..0588787 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GEM
     builder (3.0.0)
     hpricot (0.8.6)
     mocha (0.9.12)
-    rake (0.9.2)
+    rake (13.0.1)
     test-unit (2.3.2)
 
 PLATFORMS