diff --git a/README.md b/README.md
index b2ef80a..8c9e3e1 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
+> [!IMPORTANT]
+> This repository has been archived and is no longer maintained.
+> The code is provided for historical reference and may contain unpatched or unknown vulnerabilities.
+> It should not be used in production systems.
+
 ![logo](resources/logo.png)
 
 [![DOI](https://zenodo.org/badge/83449413.svg)](https://zenodo.org/badge/latestdoi/83449413)