diff --git a/textproc/py-duecredit/Makefile b/textproc/py-duecredit/Makefile
index 417b3c90b6a6..75df6cd5f7e3 100644
--- a/textproc/py-duecredit/Makefile
+++ b/textproc/py-duecredit/Makefile
@@ -1,22 +1,24 @@
 PORTNAME=	duecredit
-DISTVERSION=	0.9.2
+DISTVERSION=	0.9.3
 CATEGORIES=	textproc python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Embed scientific publication or other references in the original code
 WWW=		https://github.com/duecredit/duecredit
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}citeproc-py>=0.4:textproc/py-citeproc-py@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}requests>0:www/py-requests@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}six>0:devel/py-six@${PY_FLAVOR}
+		${PYTHON_PKGNAMEPREFIX}requests>0:www/py-requests@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	distutils concurrent autoplist
+USE_PYTHON=	distutils concurrent autoplist pytest
+
+TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
+
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/textproc/py-duecredit/distinfo b/textproc/py-duecredit/distinfo
index 12089c50449c..a7f101f44762 100644
--- a/textproc/py-duecredit/distinfo
+++ b/textproc/py-duecredit/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1675622778
-SHA256 (duecredit-0.9.2.tar.gz) = 0e0fd87e9e46ce6c94308e9f780c203fe836d89628404f8bf5af96a7457bed1c
-SIZE (duecredit-0.9.2.tar.gz) = 80998
+TIMESTAMP = 1704179024
+SHA256 (duecredit-0.9.3.tar.gz) = f8378ea90d11f9752592e487c92163da80d9a9ff39993eb83c08bf2ed4eca372
+SIZE (duecredit-0.9.3.tar.gz) = 80753