diff --git a/Gemfile b/Gemfile
index f63529e8..cd21a668 100644
--- a/Gemfile
+++ b/Gemfile
@@ -79,4 +79,5 @@ group :site do
   if ENV["PROOF"]
     gem "html-proofer", "~> 2.0"
   end
+  gem "jemoji"
 end
diff --git a/site/_config.yml b/site/_config.yml
index c065f9f7..241c5b01 100644
--- a/site/_config.yml
+++ b/site/_config.yml
@@ -22,3 +22,4 @@ url: http://jekyllrb.com
 gems:
   - jekyll-feed
   - jekyll-redirect-from
+  - jemoji