diff --git a/Gemfile.lock b/Gemfile.lock
index 65d9bc3..2e0ee70 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
     rainbow (2.2.2)
       rake
     rake (12.0.0)
-    redcarpet (3.4.0)
+    redcarpet (3.5.1)
     rspec (3.6.0)
       rspec-core (~> 3.6.0)
       rspec-expectations (~> 3.6.0)