diff --git a/devel/protozero/Makefile b/devel/protozero/Makefile
index fd36d5392d61..96f29e0a91c2 100644
--- a/devel/protozero/Makefile
+++ b/devel/protozero/Makefile
@@ -1,33 +1,34 @@
 PORTNAME=	protozero
 PORTVERSION=	1.7.1
 DISTVERSIONPREFIX=	v
 CATEGORIES=	devel
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Minimalist protocol buffer decoder and encoder in C++
 WWW=		https://github.com/mapbox/protozero
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	mapbox
 
-USES=		cmake compiler:c++11-lang
+USES=		cmake compiler:c++17-lang
+CMAKE_ARGS=	-DCMAKE_CXX_STANDARD=17
 TEST_TARGET=	test
 NO_ARCH=	yes  # header only library
 
 PORTDOCS=	CHANGELOG.md README.md UPGRADING.md
 
 OPTIONS_DEFINE=		DOCS TEST
 OPTIONS_DEFAULT=	TEST  # no additional runtime reps
 TEST_DESC=		Enable additional tests, requires protobuf at build time
 TEST_BUILD_DEPENDS=	protoc:devel/protobuf
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for f in ${PORTDOCS}
 	${INSTALL_DATA} ${WRKSRC}/${f} ${STAGEDIR}${DOCSDIR}/
 .endfor
 
 .include <bsd.port.mk>