diff --git a/Gemfile.lock b/Gemfile.lock
index 65d9bc3..e224035 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     public_suffix (2.0.5)
     rainbow (2.2.2)
       rake
-    rake (12.0.0)
+    rake (12.3.3)
     redcarpet (3.4.0)
     rspec (3.6.0)
       rspec-core (~> 3.6.0)