diff --git a/devel/py-ordered-set/Makefile b/devel/py-ordered-set/Makefile
--- a/devel/py-ordered-set/Makefile
+++ b/devel/py-ordered-set/Makefile
@@ -1,24 +1,21 @@
 PORTNAME=	ordered-set
 PORTVERSION=	4.1.0
+PORTREVISION=	1
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	antoine@FreeBSD.org
 COMMENT=	MutableSet that remembers its order, so that every entry has an index
-WWW=		https://github.com/LuminosoInsight/ordered-set
+WWW=		https://github.com/rspeer/ordered-set
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/MIT-LICENSE
 
-TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=0:devel/py-pytest@${PY_FLAVOR}
-TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}flit-core>=3.2<4:devel/py-flit-core@${PY_FLAVOR}
 
 NO_ARCH=	yes
 USES=		python
-USE_PYTHON=	distutils autoplist
-
-do-test:
-	@cd ${TEST_WRKSRC} && ${SETENV} ${TEST_ENV} pytest-${PYTHON_VER} test/test_ordered_set.py
+USE_PYTHON=	autoplist pep517 pytest
 
 .include <bsd.port.mk>