diff --git a/devel/libPropList/Makefile b/devel/libPropList/Makefile
index a7cbbea4e0ec..a8f02729a6bc 100644
--- a/devel/libPropList/Makefile
+++ b/devel/libPropList/Makefile
@@ -1,22 +1,25 @@
 PORTNAME=	libproplist
 PORTVERSION=	0.10.1
 PORTREVISION=	3
 CATEGORIES=	devel
 MASTER_SITES=	http://distfiles.macports.org/libproplist/
 DISTNAME=	libPropList-${PORTVERSION}
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Property library for gnome and Window Maker
 
+DEPRECATED=	Deprecated and unsupported upstream
+EXPIRATION_DATE=2025-06-30
+
 GNU_CONFIGURE=	yes
 USES=		libtool
 USE_LDCONFIG=	yes
 
 post-patch:
 	${REINPLACE_CMD} -e "s,mkdir rmdir,mkdir mkstemp rmdir," \
 		${WRKSRC}/configure
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/libPropList.so
 
 .include <bsd.port.mk>