diff --git a/Gemfile.lock b/Gemfile.lock
index 6a030be..5f6cbdf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
       rack (>= 1.0)
     rake (12.0.0)
     rdoc (3.6.1)
-    redcarpet (3.4.0)
+    redcarpet (3.5.1)
     rspec (3.5.0)
       rspec-core (~> 3.5.0)
       rspec-expectations (~> 3.5.0)