Install this version:
emerge -a =dev-python/certifi-2021.5.30
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-python/certifi-2021.5.30
Or alternatively:
emerge --autounmask-write -a =dev-python/certifi-2021.5.30
# Copyright 2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{12..14} )
DISTUTILS_USE_PEP517=setuptools
inherit distutils-r1 pypi
DESCRIPTION="Python package for providing Mozilla's CA Bundle."
HOMEPAGE="https://certifiio.readthedocs.io/en/latest/ https://pypi.org/project/certifi/"
LICENSE="MPL-2.0"
SLOT="0"
KEYWORDS="~amd64 ~arm64"
RDEPEND=""
BDEPEND="
>=dev-python/setuptools-38.3.0[${PYTHON_USEDEP}]
"