Index: head/science/py-GPyOpt/Makefile
===================================================================
--- head/science/py-GPyOpt/Makefile	(revision 499028)
+++ head/science/py-GPyOpt/Makefile	(revision 499029)
@@ -1,25 +1,25 @@
 # $FreeBSD$
 
 PORTNAME=	GPyOpt
 DISTVERSION=	1.2.5
 PORTREVISION=	1
 CATEGORIES=	science python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Bayesian optimization toolbox based on GPy
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}scipy>=0.16:science/py-scipy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}GPy>=1.8>0:science/py-GPy@${PY_FLAVOR}
 
-USES=		python
+USES=		python:-3.6
 USE_PYTHON=	distutils concurrent autoplist
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>