diff --git a/devel/mingw32-zlib/Makefile b/devel/mingw32-zlib/Makefile
index fe33a74a2f28..e6826d25c106 100644
--- a/devel/mingw32-zlib/Makefile
+++ b/devel/mingw32-zlib/Makefile
@@ -1,24 +1,28 @@
 PORTNAME=	zlib
 PORTVERSION=	1.2.8
 PORTREVISION=	3
 CATEGORIES=	devel archivers
 MASTER_SITES=	http://zlib.net/ \
 		SF/libpng/${PORTNAME}/${PORTVERSION}
 PKGNAMEPREFIX=	mingw32-
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	The zlib library cross-compiled for MinGW32
 WWW=		https://zlib.net/
 
+DEPRECATED=	Last upstream release was in 2014 and project mingw32 is defunct
+EXPIRATION_DATE=	2023-11-21
+
 BUILD_DEPENDS=	${PKGNAMEPREFIX}gcc:devel/${PKGNAMEPREFIX}gcc \
 		${LOCALBASE}/mingw32/include/sys/types.h:devel/${PKGNAMEPREFIX}bin-msvcrt
 
 USES=		tar:xz cpe gmake
+
 MAKEFILE=	win32/Makefile.gcc
 MAKE_ARGS=	PREFIX=${PKGNAMEPREFIX} \
 		BINARY_PATH=${CROSS_BASE}/bin \
 		INCLUDE_PATH=${CROSS_BASE}/include \
 		LIBRARY_PATH=${CROSS_BASE}/lib
 CROSS_BASE=	${PREFIX}/mingw32
 
 .include <bsd.port.mk>