diff --git a/Gemfile.lock b/Gemfile.lock
index 9fd93f6..82539d3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,7 +61,7 @@ GEM
       activesupport (= 3.0.0.rc)
       rake (>= 0.8.3)
       thor (~> 0.14.0)
-    rake (0.8.7)
+    rake (13.0.1)
     thor (0.14.0)
     treetop (1.4.8)
       polyglot (>= 0.3.1)