diff --git a/Gemfile.lock b/Gemfile.lock
index 3ec3230..dc968cb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     maruku (0.6.0)
       syntax (>= 1.0.0)
     posix-spawn (0.3.6)
-    redcarpet (2.1.1)
+    redcarpet (3.5.1)
     syntax (1.0.0)
 
 PLATFORMS