diff --git a/textproc/py-sphinxcontrib-seqdiag/Makefile b/textproc/py-sphinxcontrib-seqdiag/Makefile
index 87ddbc72f943..2fd70083db5f 100644
--- a/textproc/py-sphinxcontrib-seqdiag/Makefile
+++ b/textproc/py-sphinxcontrib-seqdiag/Makefile
@@ -1,23 +1,26 @@
 PORTNAME=	sphinxcontrib-seqdiag
 PORTVERSION=	3.0.0
 PORTREVISION=	2
 CATEGORIES=	textproc
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	python@FreeBSD.org
 COMMENT=	Sphinx extension for embedding sequence diagram
 WWW=		https://github.com/blockdiag/${PORTNAME}
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}seqdiag>=0.9.3:graphics/py-seqdiag@${PY_FLAVOR} \
+BUILD_DEPENDS=	${PY_SETUPTOOLS} \
+		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
+RUN_DEPENDS=	${PY_SETUPTOOLS} \
+		${PYTHON_PKGNAMEPREFIX}seqdiag>=0.9.3:graphics/py-seqdiag@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sphinx>=2.0:textproc/py-sphinx@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	autoplist distutils
+USE_PYTHON=	autoplist pep517
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>