diff --git a/examples/brunch/Gemfile.lock b/examples/brunch/Gemfile.lock
index b882dbb..6b48738 100644
--- a/examples/brunch/Gemfile.lock
+++ b/examples/brunch/Gemfile.lock
@@ -90,7 +90,7 @@ GEM
       activesupport (= 4.2.7.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.1)
+    rake (13.0.1)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)