diff --git a/archivers/py-libarchive-c/Makefile b/archivers/py-libarchive-c/Makefile
index 008b9350730b..fd167995f5f7 100644
--- a/archivers/py-libarchive-c/Makefile
+++ b/archivers/py-libarchive-c/Makefile
@@ -1,28 +1,27 @@
 # Created by: Kubilay Kocak <koobs@FreeBSD.org>
 
 PORTNAME=	libarchive-c
-PORTVERSION=	2.8
-PORTREVISION=	1
+PORTVERSION=	2.9
 CATEGORIES=	archivers python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	koobs@FreeBSD.org
 COMMENT=	Python interface to libarchive
 
 LICENSE=	LGPL20+
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>=0:devel/py-pytest@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}mock>=0:devel/py-mock@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}six>=0:devel/py-six@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes
 
 do-test:
-	@cd ${WRKSRC} && ${PYTHON_CMD} -m pytest -vv
+	@cd ${WRKSRC} && TZ=UTC LC_ALL=en_US.UTF-8 ${PYTHON_CMD} -m pytest -vv
 
 .include <bsd.port.mk>
diff --git a/archivers/py-libarchive-c/distinfo b/archivers/py-libarchive-c/distinfo
index 4e7de77eb277..a892fb26e40d 100644
--- a/archivers/py-libarchive-c/distinfo
+++ b/archivers/py-libarchive-c/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1532477290
-SHA256 (libarchive-c-2.8.tar.gz) = 06d44d5b9520bdac93048c72b7ed66d11a6626da16d2086f9aad079674d8e061
-SIZE (libarchive-c-2.8.tar.gz) = 45182
+TIMESTAMP = 1621176451
+SHA256 (libarchive-c-2.9.tar.gz) = 9919344cec203f5db6596a29b5bc26b07ba9662925a05e24980b84709232ef60
+SIZE (libarchive-c-2.9.tar.gz) = 46408