Index: head/devel/py-oslo.serialization/Makefile
===================================================================
--- head/devel/py-oslo.serialization/Makefile	(revision 561130)
+++ head/devel/py-oslo.serialization/Makefile	(revision 561131)
@@ -1,26 +1,26 @@
 # $FreeBSD$
 
 PORTNAME=	oslo.serialization
 PORTVERSION=	4.0.1
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Oslo Serialization library
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pbr>=2.0.0:devel/py-pbr@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}msgpack>=0.5.2:devel/py-msgpack@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}oslo.utils>=3.33.0:devel/py-oslo.utils@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pbr>=2.0.0:devel/py-pbr@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}pytz>=2013.6:devel/py-pytz@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}pytz>=2013.6,1:devel/py-pytz@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>