Index: head/www/py-draftjs_exporter/Makefile
===================================================================
--- head/www/py-draftjs_exporter/Makefile	(revision 535813)
+++ head/www/py-draftjs_exporter/Makefile	(revision 535814)
@@ -1,29 +1,29 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	draftjs_exporter
-PORTVERSION=	3.0.1
+PORTVERSION=	4.0.0
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Library to convert rich text from Draft.js raw ContentState to HTML
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		python:3.5+
-USE_PYTHON=	autoplist distutils
+USES=		python:3.6+
+USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 OPTIONS_DEFINE=	HTML5LIB LXML
 HTML5LIB_DESC=	Use html5lib as backing engine
 LXML_DESC=	Use lxml as backing engine
 
 HTML5LIB_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}beautifulsoup>=4.4.1<5:www/py-beautifulsoup@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}html5lib>=0.999<1.0.2:www/py-html5lib@${PY_FLAVOR}
 LXML_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}lxml>=4.2.0<5:devel/py-lxml@${PY_FLAVOR}
 
 .include <bsd.port.mk>
Index: head/www/py-draftjs_exporter/distinfo
===================================================================
--- head/www/py-draftjs_exporter/distinfo	(revision 535813)
+++ head/www/py-draftjs_exporter/distinfo	(revision 535814)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1589741567
-SHA256 (draftjs_exporter-3.0.1.tar.gz) = a546b65c9d7dbd1fcfae1c66f9cd6a04f684ad3e4bc587d6d68b62014ec4c053
-SIZE (draftjs_exporter-3.0.1.tar.gz) = 31395
+TIMESTAMP = 1589818821
+SHA256 (draftjs_exporter-4.0.0.tar.gz) = 843004e5628f3cda8de39f0d3a8ca923d737140681ee2db64c017395c59c8027
+SIZE (draftjs_exporter-4.0.0.tar.gz) = 32112