diff --git a/textproc/py-atoml/Makefile b/textproc/py-atoml/Makefile
index 4d5bd973a4ff..4a0bf58d205e 100644
--- a/textproc/py-atoml/Makefile
+++ b/textproc/py-atoml/Makefile
@@ -1,23 +1,23 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	atoml
 PORTVERSION=	1.0.3
 CATEGORIES=	textproc python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Yet another style preserving TOML library
 
 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/textproc/py-atoml/files/setup.py b/textproc/py-atoml/files/setup.py
index 95c58e86aea1..d1601330afcc 100644
--- a/textproc/py-atoml/files/setup.py
+++ b/textproc/py-atoml/files/setup.py
@@ -1,39 +1,39 @@
 
 # -*- coding: utf-8 -*-
 from setuptools import setup
 
 import codecs
 
 with codecs.open('README.md', encoding="utf-8") as fp:
     long_description = fp.read()
 
 setup_kwargs = {
     'name': 'atoml',
-    'version': '1.0.3',
+    'version': '%%PORTVERSION%%',
     'description': 'Yet another style preserving TOML library',
     'long_description': long_description,
     'license': 'MIT',
     'author': '',
     'author_email': 'Frost Ming <mianghong@gmail.com>,Sébastien Eustace <sebastien@eustace.io>',
     'maintainer': None,
     'maintainer_email': None,
     'url': '',
     'packages': [
         'atoml',
     ],
     'package_data': {'': ['*']},
     'long_description_content_type': 'text/markdown',
     'classifiers': [
         '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',
     ],
     'python_requires': '>=3.6',
 
 }
 
 
 setup(**setup_kwargs)