diff --git a/Gemfile b/Gemfile
index 2e45665ac..c68867310 100644
--- a/Gemfile
+++ b/Gemfile
@@ -31,7 +31,7 @@ platforms :mri, :mingw do
   # Optional Markdown support, not for JRuby
   group :markdown do
     # TODO: upgrade to redcarpet 3.x when ruby1.8 support is dropped
-    gem "redcarpet", "~> 2.3.0"
+    gem "redcarpet", "~> 3.5.1"
   end
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 1a407ee12..fc46cab7e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -96,7 +96,7 @@ GEM
     rake (10.3.2)
     rdoc (3.12.2)
       json (~> 1.4)
-    redcarpet (2.3.0)
+    redcarpet (3.5.1)
     request_store (1.0.5)
     rmagick (2.13.3)
     ruby-openid (2.3.0)
@@ -147,7 +147,7 @@ DEPENDENCIES
   rack-openid
   rails (= 3.2.19)
   rdoc (>= 2.4.2)
-  redcarpet (~> 2.3.0)
+  redcarpet (~> 3.5.1)
   request_store (= 1.0.5)
   rmagick (>= 2.0.0)
   ruby-openid (~> 2.3.0)