diff --git a/Gemfile.lock b/Gemfile.lock
index 6844905..190b61f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,7 +22,7 @@ GEM
       activeresource (= 2.3.15)
       activesupport (= 2.3.15)
       rake (>= 0.8.3)
-    rake (10.0.3)
+    rake (13.0.1)
     rmagick (2.13.1)
 
 PLATFORMS