diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 889a5fea3cd40..852bd95048bb4 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
     rb-fsevent (0.9.8)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
-    redcarpet (3.3.4)
+    redcarpet (3.5.1)
     ref (2.0.0)
     safe_yaml (1.0.4)
     sass (3.4.22)