diff --git a/www/py-flask/Makefile b/www/py-flask/Makefile
index 1a945728be06..0c51f0449ed8 100644
--- a/www/py-flask/Makefile
+++ b/www/py-flask/Makefile
@@ -1,30 +1,37 @@
 # Created by: Olivier Duchateau <duchateau.olivier@gmail.com>
 
 PORTNAME=	Flask
 DISTVERSION=	2.1.1
+PORTREVISION=	1
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	wen@FreeBSD.org
 COMMENT=	Micro web framework
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.rst
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}werkzeug>=2.0:www/py-werkzeug@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}Jinja2>=3.0:devel/py-Jinja2@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}itsdangerous>=2.0:security/py-itsdangerous@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}click>=8.0:devel/py-click@${PY_FLAVOR}
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>0:devel/py-pytest@${PY_FLAVOR}
 
 USES=		cpe python:3.7+
 CPE_VENDOR=	palletsprojects
 USE_PYTHON=	distutils concurrent autoplist
 
 NO_ARCH=	yes
 
 do-test:
 	@(cd ${TEST_WRKSRC} && ${SETENV} ${TEST_ENV} ${PYTHON_CMD} -m pytest)
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${PYTHON_REL} < 31000
+RUN_DEPENDS+=	${PYTHON_PKGNAMEPREFIX}importlib-metadata>=3.6.0:devel/py-importlib-metadata@${PY_FLAVOR}
+.endif
+
+.include <bsd.port.post.mk>