diff --git a/sysutils/k4dirstat/Makefile b/sysutils/k4dirstat/Makefile
index 4329a5801f6d..12ab34ce6392 100644
--- a/sysutils/k4dirstat/Makefile
+++ b/sysutils/k4dirstat/Makefile
@@ -1,39 +1,42 @@
 PORTNAME=	k4dirstat
 DISTVERSION=	3.4.3
 PORTREVISION=	1
 CATEGORIES=	sysutils kde
 
 MAINTAINER=	eduardo@FreeBSD.org
 COMMENT=	KDE utility that sums up disk usage for directory trees
 WWW=		https://github.com/jeromerobert/k4dirstat
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+DEPRECATED=	Depends on EOL Qt5 and upstream recommends migrating to sysutils/qdirstat
+EXPIRATION_DATE=	2026-08-31
+
 USES=		cmake compiler:c++11-lang cpe kde:5 qt:5
 CPE_VENDOR=	kdirstat_project
 CPE_PRODUCT=	kdirstat
 USE_GITHUB=	yes
 GH_ACCOUNT=	jeromerobert
 USE_KDE=	auth codecs completion config configwidgets coreaddons doctools \
 		i18n iconthemes jobwidgets kio service widgetsaddons xmlgui \
 		ecm:build
 USE_QT=		core dbus gui network widgets xml buildtools:build qmake:build
 
 OPTIONS_DEFINE=	DOCS NLS
 OPTIONS_SUB=	yes
 
 NLS_USES=	gettext-tools
 
 post-patch:
 	@${REINPLACE_CMD} -e \
 		'/^Categories/s|=.*|=Qt;KDE;Utility;|' \
 		${WRKSRC}/src/k4dirstat.desktop
 	@${REINPLACE_CMD} -e \
 		's|<sys/errno.h>|<errno.h>|' \
 		${WRKSRC}/src/kdirreadjob.cpp
 	@${REINPLACE_CMD} -e \
 		's|%%PREFIX%%|${PREFIX}|' \
 		${WRKSRC}/doc/en/CMakeLists.txt
 
 .include <bsd.port.mk>