Index: head/math/py-pynndescent/Makefile
===================================================================
--- head/math/py-pynndescent/Makefile	(revision 524021)
+++ head/math/py-pynndescent/Makefile	(revision 524022)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 PORTNAME=	pynndescent
 DISTVERSION=	0.4.4
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Python nearest neighbor descent for approximate nearest neighbors
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}joblib>0:devel/py-joblib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}llvmlite>=0.30:devel/py-llvmlite@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}numba>=0.46:devel/py-numba@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scikit-learn>=0.18:science/py-scikit-learn@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR}
 
-USES=		python
+USES=		python:3.5+
 USE_PYTHON=	distutils autoplist
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>