diff --git a/Gemfile.lock b/Gemfile.lock
index 71293ae..b8076f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -73,7 +73,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.4)
-    rake (0.9.2)
+    rake (13.0.1)
     rdoc (3.6.1)
     rspec (2.6.0)
       rspec-core (~> 2.6.0)