diff --git a/README.md b/README.md
index 0865e74..fae142f 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 This project watches a MQTT topic for meshtastic messages, imports them to a
 database and has a web UI to view them.
-Requires Python 3.12
+
+Requires **`python3.12`** and **`graphviz`**.
 
 ## Preparing