diff --git a/README.md b/README.md
index b549e8a..5e0d30a 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ Run mailing.py periodically to catch 'new' inactive users and update the elapsed
 
 -   **Python 3**
 -   Postgresql server
+-   Mastodon server (admin)
 -   Everything else at the top of `mailing.py`!
 
 ### Usage: