diff --git a/www/py-cssmin/Makefile b/www/py-cssmin/Makefile
index c6a291679091..39a08a1ad86a 100644
--- a/www/py-cssmin/Makefile
+++ b/www/py-cssmin/Makefile
@@ -1,19 +1,22 @@
 PORTNAME=	cssmin
 PORTVERSION=	0.2.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	www python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Python port of the YUI CSS compression algorithm
 WWW=		https://github.com/zacharyvoase/cssmin
 
 LICENSE=	MIT
 
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools>=0:devel/py-setuptools@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
+
 USES=		python
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent pep517
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>