diff --git a/Gemfile.lock b/Gemfile.lock
index 9c5a0cd..e5f3016 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -131,7 +131,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (11.3.0)
+    rake (13.0.6)
     rchardet (1.8.0)
     rdoc (5.0.0)
     rspec (3.5.0)