Index: head/devel/py-wheel/Makefile
===================================================================
--- head/devel/py-wheel/Makefile	(revision 512288)
+++ head/devel/py-wheel/Makefile	(revision 512289)
@@ -1,30 +1,30 @@
 # Created by: Nicola Vitale <nivit@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	wheel
 PORTVERSION=	0.30.0
-PORTREVISION=	0
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	nivit@FreeBSD.org
 COMMENT=	Built-package format for Python
 
 LICENSE=	MIT
 
 OPTIONS_DEFINE=	PIP SIGNATURE
 
 PIP_DESC=	Use pip to install wheels
 PIP_RUN_DEPENDS=	pip:devel/py-pip
 
 SIGNATURE_DESC=	Enable digital signature of wheels
 SIGNATURE_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}dirspec>=13.05:devel/py-dirspec@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}ed25519ll>=0.6_1:security/py-ed25519ll@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}keyring>=1.3:security/py-keyring@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}xdg>=0.25:devel/py-xdg@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	distutils autoplist
+USE_PYTHON=	distutils concurrent autoplist
 
 .include <bsd.port.mk>