Index: head/devel/py-cle/Makefile
===================================================================
--- head/devel/py-cle/Makefile	(revision 527852)
+++ head/devel/py-cle/Makefile	(revision 527853)
@@ -1,27 +1,27 @@
 # $FreeBSD$
 
 PORTNAME=	cle
 DISTVERSION=	8.20.1.7
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	0mp@FreeBSD.org
 COMMENT=	Pythonic interface to analyze binary formats
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>0:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}minidump>0:devel/py-minidump@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pefile>0:devel/py-pefile@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pyelftools>0:devel/py-pyelftools@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pyvex>0:security/py-pyvex@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sortedcontainers>=2.0:devel/py-sortedcontainers@${PY_FLAVOR}
 
-USES=		python
+USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>