Index: sysutils/py-pyznap/Makefile
===================================================================
--- sysutils/py-pyznap/Makefile
+++ sysutils/py-pyznap/Makefile
@@ -3,6 +3,7 @@
 PORTNAME=		pyznap
 DISTVERSIONPREFIX=	v
 DISTVERSION=		1.0.2
+PORTREVISION=		1
 CATEGORIES=		sysutils python
 PKGNAMEPREFIX=		${PYTHON_PKGNAMEPREFIX}
 
@@ -17,7 +18,7 @@
 		mbuffer:misc/mbuffer
 
 USES=		python:3.5+
-USE_PYTHON=	autoplist distutils
+USE_PYTHON=	autoplist concurrent distutils
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	yboetz