diff --git a/graphics/pngcrush/Makefile b/graphics/pngcrush/Makefile
index 63e8ab2869d4..b38e9e664acc 100644
--- a/graphics/pngcrush/Makefile
+++ b/graphics/pngcrush/Makefile
@@ -1,34 +1,37 @@
 PORTNAME=	pngcrush
 PORTVERSION=	1.8.13
 CATEGORIES=	graphics
 MASTER_SITES=	SF/pmt/${PORTNAME}/${PORTVERSION}/ \
 		SF/pmt/${PORTNAME}/old-versions/${PORTVERSION:R}/${PORTVERSION}/
 DISTNAME=	${PORTNAME}-${PORTVERSION}-nolib
 
 MAINTAINER=	vsasjason@gmail.com
 COMMENT=	Optimizer for PNG files
 WWW=		http://pmt.sourceforge.net/pngcrush/
 
 LICENSE=	Pngcrush
 LICENSE_NAME=	Pngcrush License
 LICENSE_FILE=	${WRKSRC}/LICENSE
 LICENSE_PERMS=	dist-mirror pkg-mirror auto-accept
 
+BROKEN=		Depends on undocumented feature to disable Adler32 checksums, consider graphics/oxipng or graphics/pngquant
+EXPIRATION_DATE=2024-02-29
+
 LIB_DEPENDS=	libpng.so:graphics/png
 
 USES=		cpe localbase:ldflags tar:xz
 MAKE_ARGS+=	CC="${CC}" CFLAGS="${CFLAGS}" CPPFLAGS="${CPPFLAGS}" LD="${CC}" \
 		LDFLAGS="${LDFLAGS}"
 
 CPE_VENDOR=	pngcrush_project
 
 PLIST_FILES=	bin/pngcrush
 
 post-patch:
 	@${REINPLACE_CMD} -e '/^LIBS/s|-L$$([[:alnum:]]*) ||g' \
 		${WRKSRC}/Makefile
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin/pngcrush
 
 .include <bsd.port.mk>