Index: head/textproc/py3-chardet/Makefile
===================================================================
--- head/textproc/py3-chardet/Makefile	(revision 429368)
+++ head/textproc/py3-chardet/Makefile	(revision 429369)
@@ -1,20 +1,21 @@
 # Created by: Muhammad Moinur Rahman <bofh@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	chardet
 PORTVERSION=	2.3.0
+PORTREVISION=	1
 CATEGORIES=	textproc python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Universal encoding detector for Python 3
 
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		python:3
-USE_PYTHON=	autoplist distutils
+USES=		python:3.3+
+USE_PYTHON=	autoplist concurrent distutils
 NO_ARCH=	yes
 
 .include <bsd.port.mk>