diff --git a/devel/py-pint/Makefile b/devel/py-pint/Makefile
index 8fb504ba8c2c..e9dea0609415 100644
--- a/devel/py-pint/Makefile
+++ b/devel/py-pint/Makefile
@@ -1,23 +1,30 @@
 PORTNAME=	pint
 PORTVERSION=	0.19.2
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	Pint-${PORTVERSION}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Physical quantities module
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools_scm>=0:devel/py-setuptools_scm@${PY_FLAVOR}
 
 USES=		python:3.8+ shebangfix
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 SHEBANG_FILES=	pint/pint-convert
 
+OPTIONS_DEFINE=	NUMPY UNCERTAINTIES
+NUMPY_DESC=	Automatic conversion of units
+UNCERTAINTIES_DESC=	Handle quantities with uncertainties
+
+NUMPY_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>=1.19.5,1:math/py-numpy@${PY_FLAVOR}
+UNCERTAINTIES_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}uncertainties>=3.1.6:math/py-uncertainties@${PY_FLAVOR}
+
 .include <bsd.port.mk>