diff --git a/README.rst b/README.rst
index 7df0bf3..a84cb59 100644
--- a/README.rst
+++ b/README.rst
@@ -4,6 +4,7 @@ python-dirq
 
 .. image:: https://github.com/cern-mig/python-dirq/actions/workflows/test.yml/badge.svg
 
+WARNING: This software is not maintained anymore.
 
 Overview
 ========