diff --git a/README.md b/README.md
index 8a60f87ef..5c14c0523 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Sockeye
 
+**Sockeye has entered maintenance mode and is no longer adding new features. We are grateful to everyone who has contributed to Sockeye throughout its development with pull requests, issue reports, and more.**
+
 [![PyPI version](https://badge.fury.io/py/sockeye.svg)](https://badge.fury.io/py/sockeye)
 [![GitHub license](https://img.shields.io/github/license/awslabs/sockeye.svg)](https://github.com/awslabs/sockeye/blob/main/LICENSE)
 [![GitHub issues](https://img.shields.io/github/issues/awslabs/sockeye.svg)](https://github.com/awslabs/sockeye/issues)