diff --git a/www/py-google-cloud-bigtable/Makefile b/www/py-google-cloud-bigtable/Makefile
index 2c83d5934059..0900dfa31444 100644
--- a/www/py-google-cloud-bigtable/Makefile
+++ b/www/py-google-cloud-bigtable/Makefile
@@ -1,26 +1,26 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	google-cloud-bigtable
 PORTVERSION=	2.2.0
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Google Cloud Bigtable API client library
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}google-api-core>=1.14.0<2.0.0:www/py-google-api-core@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}google-cloud-core>=1.4.1<2.0:www/py-google-cloud-core@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}grpc-google-iam-v1>=0.12.3<0.13:devel/py-grpc-google-iam-v1@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}libcst>=0.2.5:devel/py-libcst@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}proto-plus>=1.13.0:devel/py-proto-plus@${PY_FLAVOR}
 
-USES=		python:3.5+
+USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>