diff --git a/devel/py-openapi-schema-validator/Makefile b/devel/py-openapi-schema-validator/Makefile
index 5f3574c12327..97caab382820 100644
--- a/devel/py-openapi-schema-validator/Makefile
+++ b/devel/py-openapi-schema-validator/Makefile
@@ -1,23 +1,32 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	openapi-schema-validator
 PORTVERSION=	0.2.0
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	OpenAPI schema validation for Python
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}attrs>=19.2.0:devel/py-attrs@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}jsonschema>=4.0.0<5.0.0:devel/py-jsonschema@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
+OPTIONS_DEFINE=	ISODATE RFC3339_VALIDATOR STRICT_RFC3339
+ISODATE_DESC=		Datetime validator via isodate
+RFC3339_VALIDATOR_DESC=	Datetime validator via rfc3339-validator
+STRICT_RFC3339_DESC=	Datetime validator via strict-rfc3339
+
+ISODATE_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}isodate>=0:devel/py-isodate@${PY_FLAVOR}
+RFC3339_VALIDATOR_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}rfc3339-validator>=0:devel/py-rfc3339-validator@${PY_FLAVOR}
+STRICT_RFC3339_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}strict-rfc3339>=0:devel/py-strict-rfc3339@${PY_FLAVOR}
+
 .include <bsd.port.mk>