diff --git a/README.md b/README.md
index 800eab2..57d9513 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,11 @@ To deploy Synapse and Mastodon, you need to deploy a database server. We are goi
 
 For more details to do this, I refer you to [this link](https://stribny.name/blog/ansible-postgresql/) which will walk you through how to deal with this.
 
+Note that you won't be using the `dnf` instruction here since DNF is the package manager for CentOS based systems, use `apt` instead. Similarily the packages are named a bit differently, you need to install
+
+- `postgresql`
+- `python3-psycopg2`
+
 If you are feeling adventurous you can install postgresql using [docker](https://github.com/levonet/ansible-docker-postgres).
 
 Either way, you need to install this on youd DB machine, which should be the one with the least amount of RAM.