diff --git a/Gemfile.lock b/Gemfile.lock
index 458c631..64b80eb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       activesupport (= 4.0.0)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.0.3)
+    rake (13.0.1)
     rspec (2.13.0)
       rspec-core (~> 2.13.0)
       rspec-expectations (~> 2.13.0)