diff --git a/README.md b/README.md
index b4893ef..932d92a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,12 @@
+**DEPRECATED** this action is in maintenance-only mode and will not be
+accepting new features.
+
+Please switch to using [pre-commit.ci] which is faster and has more features.
+
+[pre-commit.ci]: https://pre-commit.ci
+
+___
+
 [![pre-commit.ci status](https://results.pre-commit.ci/badge/github/pre-commit/action/master.svg)](https://results.pre-commit.ci/latest/github/pre-commit/action/master)
 [![Build Status](https://github.com/pre-commit/action/workflows/deploy/badge.svg)](https://github.com/pre-commit/action/actions)