diff --git a/Gemfile.lock b/Gemfile.lock
index d26141f..e433d09 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     rack (1.4.1)
     rack-protection (1.2.0)
       rack
-    redcarpet (2.1.1)
+    redcarpet (3.5.1)
     sass (3.1.20)
     sinatra (1.3.2)
       rack (~> 1.3, >= 1.3.6)