diff --git a/README.md b/README.md
index 78527f0..7094e25 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
+> [!WARNING]  
+> This repository is no longer actively maintained. It is strongly suggested that you use the [officially-supported Ruff action from Astral](https://github.com/astral-sh/ruff-action).
+
+
 # ruff-action
 A GitHub Action for Ruff