diff --git a/security/pbc/Makefile b/security/pbc/Makefile
index 6863f2198adc..ffbac573fb3b 100644
--- a/security/pbc/Makefile
+++ b/security/pbc/Makefile
@@ -1,29 +1,32 @@
 PORTNAME=	pbc
 PORTVERSION=	0.5.14
 PORTREVISION=	1
 CATEGORIES=	security
 MASTER_SITES=	http://crypto.stanford.edu/pbc/files/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Library of pairing-based cryptosystems
 WWW=		https://crypto.stanford.edu/pbc/
 
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
+DEPRECATED=	Abandonware, last release in 2013 and no development since
+EXPIRATION_DATE=2024-02-29
+
 LIB_DEPENDS=	libgmp.so:math/gmp
 
 USES=		bison libtool
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
 post-patch:
 	@${REINPLACE_CMD} -e \
 		's|^CFLAGS=$$|| ; \
 		 s|-O3||' ${WRKSRC}/configure
 
 .include <bsd.port.mk>