diff --git a/Gemfile.lock b/Gemfile.lock
index a00055d..adab972 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     diff-lcs (1.1.3)
-    rake (10.0.3)
+    rake (12.3.3)
     rspec (2.12.0)
       rspec-core (~> 2.12.0)
       rspec-expectations (~> 2.12.0)