diff --git a/Gemfile.lock b/Gemfile.lock
index fa82f02..8d59f98 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,7 +39,7 @@ GEM
     posix-spawn (0.3.13)
     rainbow (2.2.2)
       rake
-    rake (12.0.0)
+    rake (13.0.6)
     redcarpet (3.5.0)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)