diff --git a/Gemfile.lock b/Gemfile.lock
index 09216d5..f8504fd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
       binding_of_caller (>= 0.7)
       pry (>= 0.9.11)
     rainbow (3.0.0)
-    rake (12.3.0)
+    rake (12.3.1)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
       rspec-expectations (~> 3.7.0)