diff --git a/math/py-petsc4py/Makefile b/math/py-petsc4py/Makefile
index 1ef77f6535c3..db88209ed0fd 100644
--- a/math/py-petsc4py/Makefile
+++ b/math/py-petsc4py/Makefile
@@ -1,36 +1,37 @@
 PORTNAME=	petsc4py
-DISTVERSION=	3.19.5
+DISTVERSION=	3.20.1
 CATEGORIES=	math python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	PETSc for Python
 WWW=		https://gitlab.com/petsc/petsc
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.rst
 
-BUILD_DEPENDS=	${PYNUMPY}
+BUILD_DEPENDS=	${PYNUMPY} \
+		${PYTHON_PKGNAMEPREFIX}cython3>0:lang/cython3
 LIB_DEPENDS=	libpetsc.so:science/PETSc
 RUN_DEPENDS=	${PYNUMPY}
 
 USES=		python
-USE_PYTHON=	distutils cython autoplist pytest # tests fail to run, see https://gitlab.com/petsc/petsc/-/issues/1301
+USE_PYTHON=	distutils autoplist pytest # tests fail to run, see https://gitlab.com/petsc/petsc/-/issues/1301
 
 MAKE_ENV=	PETSC_DIR=${LOCALBASE}
 
 OPTIONS_SINGLE=		MPI
 OPTIONS_SINGLE_MPI=	MPICH OPENMPI
 OPTIONS_DEFAULT=	MPICH
 
 MPICH_USES=		mpi:mpich
 
 OPENMPI_USES=		mpi:openmpi
 
 TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/petsc4py/lib/PETSc${PYTHON_EXT_SUFFIX}.so
 
 .include <bsd.port.mk>
diff --git a/math/py-petsc4py/distinfo b/math/py-petsc4py/distinfo
index 82cdbc1e8638..4abce8741818 100644
--- a/math/py-petsc4py/distinfo
+++ b/math/py-petsc4py/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1693556854
-SHA256 (petsc4py-3.19.5.tar.gz) = e059fdb8b23936c3182c9226924029dbdc8f1f72a623be0fe8c2caf8646c7a45
-SIZE (petsc4py-3.19.5.tar.gz) = 292333
+TIMESTAMP = 1699405436
+SHA256 (petsc4py-3.20.1.tar.gz) = dcc9092040d13130496f1961b79c36468f383b6ede398080e004f1966c06ad38
+SIZE (petsc4py-3.20.1.tar.gz) = 413437