diff --git a/Gemfile.lock b/Gemfile.lock
index 2bf8307..2d7bc01 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -45,7 +45,7 @@ GEM
       rack (>= 1.2, < 3)
     psych (2.2.4)
     rack (2.0.3)
-    rake (12.3.0)
+    rake (13.0.1)
     rdoc (6.0.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)