diff --git a/example/Gemfile.lock b/example/Gemfile.lock
index 32919b0f..021c687e 100644
--- a/example/Gemfile.lock
+++ b/example/Gemfile.lock
@@ -106,7 +106,7 @@ GEM
       activesupport (= 4.2.5.1)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.5.0)
+    rake (13.0.1)
     rspec (3.0.0)
       rspec-core (~> 3.0.0)
       rspec-expectations (~> 3.0.0)