diff --git a/Gemfile.lock b/Gemfile.lock
index d910aba..67a47b0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
     rack (1.4.1)
     rack-test (0.6.1)
       rack (>= 1.0)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rspec (2.8.0)
       rspec-core (~> 2.8.0)
       rspec-expectations (~> 2.8.0)