diff --git a/devel/go-protobuf/Makefile b/devel/go-protobuf/Makefile
index 665a1bf4a2ce..3ccc71d720a0 100644
--- a/devel/go-protobuf/Makefile
+++ b/devel/go-protobuf/Makefile
@@ -1,34 +1,37 @@
 PORTNAME=	protobuf
 DISTVERSION=	1.3.2
 DISTVERSIONPREFIX=	v
 PORTREVISION=	20
 PORTEPOCH=	1
 CATEGORIES=	devel
 PKGNAMEPREFIX=	go-
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Protocol Buffers for Go with Gadgets
 WWW=		https://github.com/gogo/protobuf
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+DEPRECATED=	Upstream officially deprecated this project
+EXPIRATION_DATE=2024-06-30
+
 USES=		cpe go
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	gogo
 GH_SUBDIR=	src/github.com/gogo/protobuf
 
 GO_TARGET=	./protoc-gen-combo \
 		./protoc-gen-gofast \
 		./protoc-gen-gogo \
 		./protoc-gen-gogofast \
 		./protoc-gen-gogofaster \
 		./protoc-gen-gogoslick \
 		./protoc-gen-gogotypes \
 		./protoc-gen-gostring \
 		./protoc-min-version
 
 CPE_VENDOR=	golang
 
 .include <bsd.port.mk>