diff --git a/README.md b/README.md
index 48e9e85..931abef 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,13 @@ You do not need to pay anything or be a member organization.
 
 CircuitMatter is currently developed in CPython 3.12, the de facto implementation written in C. It is designed with minimal dependencies so that it can also be used on CircuitPython on microcontrollers.
 
+### Requirements
+
 After cloning the repo, pip install `ecdsa`, `cryptography` and `qrcode`.
+This project is based on [avahi tools](https://avahi.org). It must therefore be installed for it to work properly.
+```shell
+sudo apt-get install avahi-utils
+```
 
 ### Running a CircuitMatter replay