diff --git a/devel/libfortuna/Makefile b/devel/libfortuna/Makefile
index c4c383a5e5eb..3fc6a1778877 100644
--- a/devel/libfortuna/Makefile
+++ b/devel/libfortuna/Makefile
@@ -1,23 +1,26 @@
 PORTNAME=	libfortuna
 PORTVERSION=	0.1.1
 CATEGORIES=	devel
 
 MAINTAINER=	waitman@waitman.net
 COMMENT=	Fortuna PRNG Library
 WWW=		http://crxwg.com/fortuna/bin/libfortuna.html
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYRIGHT
 
+DEPRECATED=	Legacy fortuna library, last upstream activity 10 years ago
+EXPIRATION_DATE=2025-07-31
+
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 GH_ACCOUNT=	waitman
 GH_TAGNAME=	11cbd88
 
 .include <bsd.port.pre.mk>
 
 .if ${OPSYS} == FreeBSD
 CFLAGS+=	-Wno-error=array-parameter
 .endif
 
 .include <bsd.port.post.mk>