diff --git a/devel/py-blist/Makefile b/devel/py-blist/Makefile
index 2ee4a6555a9a..fc572c9ccd08 100644
--- a/devel/py-blist/Makefile
+++ b/devel/py-blist/Makefile
@@ -1,24 +1,27 @@
 PORTNAME=	blist
 PORTVERSION=	1.3.6
 PORTREVISION=	2
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Drop-in list replacement with better performance for large lists
 WWW=		http://stutzbachenterprises.com/blist/
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+DEPRECATED=	Abandoned project, no consumers, no modern python support
+EXPIRATION_DATE=	2025-04-03
+
 USES=		python:3.9
 USE_PYTHON=	autoplist distutils
 
 do-test:
 	@(cd ${WRKSRC} && ${PYTHON_CMD} ${PYDISTUTILS_SETUP} test)
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/blist/*.so
 
 .include <bsd.port.mk>