diff --git a/Gemfile b/Gemfile
index 016d9fc..77a564b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -45,7 +45,7 @@ platforms :mri, :mingw, :x64_mingw do
 
   # Optional Markdown support, not for JRuby
   group :markdown do
-    gem "redcarpet", "~> 3.3.2"
+    gem "redcarpet", "~> 3.4.0"
   end
 end