diff --git a/Gemfile.lock b/Gemfile.lock
index f453f89..a19f6d5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     diff-lcs (1.1.3)
     minitest (3.2.0)
-    rake (0.9.2.2)
+    rake (12.3.3)
     rspec (2.11.0)
       rspec-core (~> 2.11.0)
       rspec-expectations (~> 2.11.0)