diff --git a/sample_app/Gemfile.lock b/sample_app/Gemfile.lock
index 54b6f2ba..c7f50401 100644
--- a/sample_app/Gemfile.lock
+++ b/sample_app/Gemfile.lock
@@ -108,7 +108,7 @@ GEM
       rake (>= 0.8.7)
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
-    rake (10.1.0)
+    rake (13.0.3)
     rdoc (3.12.2)
       json (~> 1.4)
     rspec-core (2.14.0)