diff --git a/Gemfile.lock b/Gemfile.lock
index da46d79..f963419 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,7 +136,7 @@ GEM
       thor (~> 0.14.6)
     rainbow (1.1.4)
     raindrops (0.10.0)
-    rake (0.9.2.2)
+    rake (13.0.1)
     rdoc (3.12)
       json (~> 1.4)
     rspec (2.11.0)