diff --git a/rails/Gemfile b/rails/Gemfile
index f0c489f..8308244 100644
--- a/rails/Gemfile
+++ b/rails/Gemfile
@@ -37,7 +37,7 @@ gem "rb-inotify", github: "matthewd/rb-inotify", branch: "close-handling", requi
 
 group :doc do
   gem "sdoc", "~> 1.0"
-  gem "redcarpet", "~> 3.2.3", platforms: :ruby
+  gem "redcarpet", "~> 3.5.1", platforms: :ruby
   gem "w3c_validators"
   gem "kindlerb", "~> 1.2.0"
 end
diff --git a/rails/Gemfile.lock b/rails/Gemfile.lock
index 2fdd898..9136c37 100644
--- a/rails/Gemfile.lock
+++ b/rails/Gemfile.lock
@@ -380,7 +380,7 @@ GEM
     rake (12.3.1)
     rb-fsevent (0.10.3)
     rdoc (6.0.4)
-    redcarpet (3.2.3)
+    redcarpet (3.5.1)
     redis (4.0.1)
     redis-namespace (1.6.0)
       redis (>= 3.0.4)
@@ -551,7 +551,7 @@ DEPENDENCIES
   rails!
   rake (>= 11.1)
   rb-inotify!
-  redcarpet (~> 3.2.3)
+  redcarpet (~> 3.5.1)
   redis (~> 4.0)
   redis-namespace
   resque