diff --git a/Gemfile.lock b/Gemfile.lock
index f8dfc2c..04413b0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -31,7 +31,7 @@ GEM
     nokogiri (1.5.2)
     rack (1.4.1)
     raindrops (0.8.0)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rspec (2.8.0)
       rspec-core (~> 2.8.0)
       rspec-expectations (~> 2.8.0)