diff --git a/Gemfile.lock b/Gemfile.lock
index a98ca19..3c16dee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redcarpet (2.3.0)
+    redcarpet (3.5.1)
     rexml (3.2.5)
     rouge (3.26.0)
     ruby2_keywords (0.0.4)