diff --git a/Gemfile.lock b/Gemfile.lock
index 550ccf3..a9cd3db 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -71,7 +71,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (~> 0.14.6)
-    rake (0.9.2)
+    rake (13.0.1)
     rdoc (3.10)
       json (~> 1.4)
     rspec (2.6.0)