diff --git a/Gemfile.lock b/Gemfile.lock
index 80a7974..a771085 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
     rack (1.5.2)
     rack-protection (1.5.2)
       rack
-    rake (10.1.1)
+    rake (13.0.1)
     rmagick (2.13.2)
     rspec (2.14.1)
       rspec-core (~> 2.14.0)