Index: head/net-im/py-slackclient/Makefile
===================================================================
--- head/net-im/py-slackclient/Makefile	(revision 509275)
+++ head/net-im/py-slackclient/Makefile	(revision 509276)
@@ -1,34 +1,40 @@
 # Created by: Kubilay Kocak <koobs@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	slackclient
-PORTVERSION=	2.0.1
+PORTVERSION=	2.1.0
+DISTVERSIONPREFIX=v
 CATEGORIES=	net-im python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	koobs@FreeBSD.org
 COMMENT=	Slack API clients for Web API and RTM API
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest-runner>0:devel/py-pytest-runner@${PY_FLAVOR}
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}aiohttp>3.5.2:www/py-aiohttp@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}aiodns>1.0:dns/py-aiodns@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}aiohttp>3.5.2:www/py-aiohttp@${PY_FLAVOR}
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>0:devel/py-pytest@${PY_FLAVOR}
 
 USES=		python:3.6+
 
 USE_GITHUB=	yes
 USE_PYTHON=	autoplist distutils
+
+OPTIONS_DEFINE=		ASYNCDNS
+OPTIONS_DEFAULT=	ASYNCDNS
+
+ASYNCDNS_DESC=		Asyncronous DNS support
+ASYNCDNS_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}aiodns>1.0:dns/py-aiodns@${PY_FLAVOR}
 
 # Does not currently include tests in sdist
 GH_ACCOUNT=	slackapi
 GH_PROJECT=	python-${PORTNAME}
 
 NO_ARCH=	yes
 
 do-test:
 	@cd ${WRKSRC} && ${PYTHON_CMD} -m pytest -v -rs
 
 .include <bsd.port.mk>
Index: head/net-im/py-slackclient/distinfo
===================================================================
--- head/net-im/py-slackclient/distinfo	(revision 509275)
+++ head/net-im/py-slackclient/distinfo	(revision 509276)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1557112535
-SHA256 (slackapi-python-slackclient-2.0.1_GH0.tar.gz) = e387881e22c2fade31e6274ac9f45378a873e061c13eb822c6f2bcb3f21adaeb
-SIZE (slackapi-python-slackclient-2.0.1_GH0.tar.gz) = 318677
+TIMESTAMP = 1566212113
+SHA256 (slackapi-python-slackclient-v2.1.0_GH0.tar.gz) = 247df5df4d5c83aa37f801fa272855c2c4c549492664117919e9a23fc4a3b21c
+SIZE (slackapi-python-slackclient-v2.1.0_GH0.tar.gz) = 352815