diff --git a/Gemfile.lock b/Gemfile.lock
index ac0fda7..dd068f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
   remote: http://rubygems.org/
   specs:
     diff-lcs (1.1.3)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rspec (2.11.0)
       rspec-core (~> 2.11.0)
       rspec-expectations (~> 2.11.0)