diff --git a/README.md b/README.md
index 894e840..8b1db98 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ export HTTP_API_KEY=$(ruby -e "require 'securerandom'; puts SecureRandom.hex(20)
 heroku config:add THEME=the-surf HTTP_API_KEY=$HTTP_API_KEY
 git push heroku
 heroku run 'sequel -m db/migrate $DATABASE_URL'
+heroku addons:add memcache:5mb
 ```
 
 Upload an article using a template like [the-surf-content](https://github.com/brandur/the-surf-content):