diff --git a/demo-5.2.1/Gemfile.lock b/demo-5.2.1/Gemfile.lock
index f377b32..be94ed2 100644
--- a/demo-5.2.1/Gemfile.lock
+++ b/demo-5.2.1/Gemfile.lock
@@ -135,7 +135,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.2)
+    rake (13.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)