diff --git a/Gemfile.lock b/Gemfile.lock
index c0263c2..263c4c6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
   specs:
     diff-lcs (1.2.5)
     digest-crc (0.4.0)
-    rake (10.1.1)
+    rake (13.0.1)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)
       rspec-expectations (~> 2.14.0)