diff --git a/devel/py-pdm-pep517/Makefile b/devel/py-pdm-pep517/Makefile
index 8394f6830235..5b763e3d525e 100644
--- a/devel/py-pdm-pep517/Makefile
+++ b/devel/py-pdm-pep517/Makefile
@@ -1,23 +1,23 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	pdm-pep517
 PORTVERSION=	0.8.5
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	PEP 517 backend for PDM that supports PEP 621 metadata
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 post-patch:
-	@${CP} ${FILESDIR}/setup.py ${WRKSRC}/
+	@${SED} -e 's|%%PORTVERSION%%|${PORTVERSION}|' ${FILESDIR}/setup.py > ${WRKSRC}/setup.py
 
 .include <bsd.port.mk>
diff --git a/devel/py-pdm-pep517/files/setup.py b/devel/py-pdm-pep517/files/setup.py
index b808f83948ae..e7f120b5e1ee 100644
--- a/devel/py-pdm-pep517/files/setup.py
+++ b/devel/py-pdm-pep517/files/setup.py
@@ -1,55 +1,55 @@
 
 # -*- coding: utf-8 -*-
 from setuptools import setup
 
 import codecs
 
 with codecs.open('README.md', encoding="utf-8") as fp:
     long_description = fp.read()
 EXTRAS_REQUIRE = {
     'setuptools': [
         'setuptools>=42',
         'wheel',
         'editables==0.2',
     ],
 }
 
 setup_kwargs = {
     'name': 'pdm-pep517',
-    'version': '0.8.5',
+    'version': '%%PORTVERSION%%',
     'description': 'A PEP 517 backend for PDM that supports PEP 621 metadata',
     'long_description': long_description,
     'license': 'MIT',
     'author': '',
     'author_email': 'Frost Ming <mianghong@gmail.com>',
     'maintainer': None,
     'maintainer_email': None,
     'url': 'https://pdm.fming.dev',
     'packages': [
         'pdm.pep517',
         'pdm.pep517._vendor',
         'pdm.pep517._vendor.cerberus',
         'pdm.pep517._vendor.packaging',
         'pdm.pep517._vendor.toml',
     ],
     'package_data': {'': ['*']},
     'long_description_content_type': 'text/markdown',
     'keywords': ['packaging', 'PEP 517', 'build'],
     'classifiers': [
         'Development Status :: 3 - Alpha',
         'License :: OSI Approved :: MIT License',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Topic :: Software Development :: Build Tools',
     ],
     'extras_require': EXTRAS_REQUIRE,
     'python_requires': '>=3.6',
 
 }
 
 
 setup(**setup_kwargs)