diff --git a/www/py-caldav/Makefile b/www/py-caldav/Makefile
index 6c5193476198..0e8f86ca60db 100644
--- a/www/py-caldav/Makefile
+++ b/www/py-caldav/Makefile
@@ -1,23 +1,34 @@
 PORTNAME=	caldav
-PORTVERSION=	0.8.2
+PORTVERSION=	0.9.0
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	jrm@FreeBSD.org
 COMMENT=	CalDAV (RFC4791) client library
 
 LICENSE=	APACHE20 GPLv3
 LICENSE_COMB=	dual
 
-RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}lxml>=3.6.0:devel/py-lxml@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}requests>=2.3.0:www/py-requests@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}six>=1.10.0:devel/py-six@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}vobject>=0.8.1:deskutils/py-vobject@${PY_FLAVOR}
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}lxml>=0:devel/py-lxml@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}requests>=0:www/py-requests@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}six>=0:devel/py-six@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}vobject>=0:deskutils/py-vobject@${PY_FLAVOR}
+
+TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}icalendar>=0:devel/py-icalendar@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}nose>0:devel/py-nose@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}pytest>=0:devel/py-pytest@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}radicale>=0:www/radicale@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}tzlocal>0:devel/py-tzlocal@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
+TEST_ENV=	TZ=UTC
+
 NO_ARCH=	yes
 
+do-test:
+	cd ${WRKSRC}/.. && ${SETENV} ${TEST_ENV} ${PYTHON_CMD} -m pytest -v -rs -o addopts=
+
 .include <bsd.port.mk>
diff --git a/www/py-caldav/distinfo b/www/py-caldav/distinfo
index a95689ba20a3..c624867681a4 100644
--- a/www/py-caldav/distinfo
+++ b/www/py-caldav/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1639187085
-SHA256 (caldav-0.8.2.tar.gz) = f37dfcecdb6753259a179794ba19ec0bdaf2d28fa745a8b2336c6ed252a0c777
-SIZE (caldav-0.8.2.tar.gz) = 117087
+TIMESTAMP = 1650990948
+SHA256 (caldav-0.9.0.tar.gz) = 6053493d1247fc28796cac58982677b21854dc05e14bb35190fcda4a3f4c6c51
+SIZE (caldav-0.9.0.tar.gz) = 166894