Index: head/devel/py-tartiflette/Makefile
===================================================================
--- head/devel/py-tartiflette/Makefile	(revision 561139)
+++ head/devel/py-tartiflette/Makefile	(revision 561140)
@@ -1,26 +1,26 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	tartiflette
 PORTVERSION=	1.3.0
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	GraphQL Engine for Python
 
 LICENSE=	MIT
 
 LIB_DEPENDS=	libgraphqlparser.so:devel/libgraphqlparser
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>=1.0.0<2.0.0:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}lark-parser>=0.11.1:devel/py-lark-parser@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}pytz>=0:devel/py-pytz@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}pytz>=0,1:devel/py-pytz@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 post-patch:
 	@${LN} -s ${LOCALBASE}/lib/libgraphqlparser.so ${WRKSRC}/tartiflette/language/parsers/libgraphqlparser/cffi/libgraphqlparser.so
 
 .include <bsd.port.mk>