diff --git a/Gemfile.lock b/Gemfile.lock
index 4b2b4b0..3b03b81 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
       rack (>= 0.9.1)
     rack-protection (1.2.0)
       rack
-    redcarpet (2.2.2)
+    redcarpet (3.5.1)
     shotgun (0.9)
       rack (>= 1.0)
     sinatra (1.3.2)