diff --git a/README.md b/README.md
index 8006e75..802b46f 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,20 @@
 # mastible
 An Ansible playbook to install Mastodon
 
+## Requirements
+
+- Latest stable version of Ansible (this was tested with Ansible 2.4)
+- Server(s) running Ubuntu 16.04 LTS for hosting Mastodon
+
 ## Instructions for running this playbook
 
-- Copy roles/mastodon-config/templates/.env.production.sample to roles/mastodon-config/templates/.env.production, edit with all relevant details
-  (SMTP details are probably the only required one, the others you can leave be)
-- Make a hosts file that looks like this (*Make sure that the nodename here is the domain/sub-domain you want for your Mastodon instance, we use it as a variable*):
+- Copy roles/mastodon-config/templates/.env.production.sample to
+  roles/mastodon-config/templates/.env.production, edit with all
+  relevant details. (SMTP details are probably the only required one,
+  the others you can leave be)
+- Make a hosts file that looks like this (**Make sure that the nodename
+  here is the domain/sub-domain you want for your Mastodon instance, we
+  use it as a variable**):
 
 ```
 [mastodon]