diff --git a/dev-python/flask-babel/Manifest b/dev-python/flask-babel/Manifest
index 9007775b295f5..876d26a4d2f59 100644
--- a/dev-python/flask-babel/Manifest
+++ b/dev-python/flask-babel/Manifest
@@ -1 +1,2 @@
 DIST flask-babel-3.1.0.gh.tar.gz 20625 BLAKE2B 44c0f6e0af8e9d48035819a98dcfe472af0e53d98486b3bca367227092d098e392e09b0383b08d0eb782732d235f6f519bf6f553ea751750a869fc5f4de4bdd2 SHA512 74faab1e259fe38caf583982bf7a3595440ef37ec223a68243fa43eadfd4d661055706ba8eb92d29f37586e6a27d4f00fbdf5be8443820346b35b9551b716fc7
+DIST flask-babel-4.0.0.gh.tar.gz 20777 BLAKE2B 60c43fde9a2c131672fa7d97dbfe8cc1c69117e60b3616a2f4d19b5693ff79937537cf7563de2fcf26c3380dd51166fd1bc965a1c583dc33fb340da609070503 SHA512 c2ac57e4ebde67114d535e57eb8b4094c8e3af865ea3076cd8d0ae30ff4a189037b7481280faaf7a4742bbbddca1513b3c408e198d1156c1e61a7b90c05bfe6f
diff --git a/dev-python/flask-babel/flask-babel-4.0.0.ebuild b/dev-python/flask-babel/flask-babel-4.0.0.ebuild
new file mode 100644
index 0000000000000..8af225659c241
--- /dev/null
+++ b/dev-python/flask-babel/flask-babel-4.0.0.ebuild
@@ -0,0 +1,41 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=poetry
+PYTHON_COMPAT=( pypy3 python3_{10..12} )
+
+inherit distutils-r1
+
+DESCRIPTION="i18n and l10n support for Flask based on Babel and pytz"
+HOMEPAGE="
+	https://python-babel.github.io/flask-babel/
+	https://github.com/python-babel/flask-babel/
+	https://pypi.org/project/flask-babel/
+"
+SRC_URI="
+	https://github.com/python-babel/flask-babel/archive/refs/tags/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz
+"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~riscv ~x86"
+
+RDEPEND="
+	>=dev-python/Babel-2.12[${PYTHON_USEDEP}]
+	>=dev-python/flask-2.0[${PYTHON_USEDEP}]
+	>=dev-python/jinja-3.1[${PYTHON_USEDEP}]
+	>=dev-python/pytz-2022.7[${PYTHON_USEDEP}]
+	dev-python/werkzeug[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	test? (
+		dev-python/pytest-mock[${PYTHON_USEDEP}]
+	)
+"
+
+distutils_enable_sphinx docs \
+	dev-python/pallets-sphinx-themes
+distutils_enable_tests pytest