diff --git a/dev-python/jupyter-client/Manifest b/dev-python/jupyter-client/Manifest
index 825a8d3f1f4cd..8fb1ef7fec2e1 100644
--- a/dev-python/jupyter-client/Manifest
+++ b/dev-python/jupyter-client/Manifest
@@ -1,2 +1,3 @@
 DIST jupyter_client-8.8.0.tar.gz 348020 BLAKE2B 440930a9db3d50c1dae8ae8e59ea77487b23f7a28ecbd631fc14ec1b27cf69c9baa182edf29dfde01ce61d83ae082894107769da78f528c81410d714ce7d0507 SHA512 6b154318f1ab52adcf4d64ad80a588ddd71325a69ec9193030d4dfcb3d6da5c9d9eea4e28f12a6f60de06aaa3a44b22bd10990464efb36d187724bedb98c2101
 DIST jupyter_client-8.9.0.tar.gz 358714 BLAKE2B 1b7df9122f508e27f35e085fb1775c5cc0d1239f815af1def5f1f62241e9dcf1f0eec1202034866ba90d6e98ecf45257e63f0dc2a604d282b8df1116e786294b SHA512 84180c5a0dd12de8a2cbade4f660c12ce1a52fca033b7392c47f5b876e5662ea7eed661f24435e9d747f49ae580b12382f027b36c4426d05af681a92e989e7c0
+DIST jupyter_client-8.9.1.tar.gz 359256 BLAKE2B e02afbe26352908302a48e552915c94a08087fbb271c5895a890c599853591f4d19f7b15687dfc1e32cf25ff837b8c2080e53b524274b7d5e85603adb789e35c SHA512 8a125344a458bfa4102a8895220a659b39fc72e2a0a9ee99ca3d25471c2bc4b09b307c17d6c1103501ad4eff058269ed0688239aa8f4d753ff079d9de014822b
diff --git a/dev-python/jupyter-client/jupyter-client-8.9.1.ebuild b/dev-python/jupyter-client/jupyter-client-8.9.1.ebuild
new file mode 100644
index 0000000000000..f18b1526f91fe
--- /dev/null
+++ b/dev-python/jupyter-client/jupyter-client-8.9.1.ebuild
@@ -0,0 +1,51 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=hatchling
+PYTHON_COMPAT=( python3_{12..14} )
+PYTHON_REQ_USE="threads(+)"
+
+inherit distutils-r1 pypi
+
+DESCRIPTION="Jupyter protocol implementation and client libraries"
+HOMEPAGE="
+	https://jupyter.org/
+	https://github.com/jupyter/jupyter_client/
+	https://pypi.org/project/jupyter-client/
+"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos"
+
+RDEPEND="
+	>=dev-python/jupyter-core-5.1[${PYTHON_USEDEP}]
+	>=dev-python/python-dateutil-2.8.2[${PYTHON_USEDEP}]
+	>=dev-python/pyzmq-25.0[${PYTHON_USEDEP}]
+	>=dev-python/tornado-6.4.1[${PYTHON_USEDEP}]
+	dev-python/traitlets[${PYTHON_USEDEP}]
+	>=dev-python/typing-extensions-4.13.0[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	test? (
+		>=dev-python/ipykernel-6.14[${PYTHON_USEDEP}]
+		dev-python/msgpack[${PYTHON_USEDEP}]
+	)
+"
+
+EPYTEST_RERUNS=3
+EPYTEST_PLUGINS=( anyio pytest-{jupyter,timeout} )
+distutils_enable_tests pytest
+
+python_test() {
+	local EPYTEST_DESELECT=(
+		# TODO: times out
+		tests/test_client.py::TestAsyncKernelClient::test_input_request
+		# TODO
+		tests/test_multikernelmanager.py::TestKernelManager::test_tcp_cinfo
+	)
+
+	epytest -o tmp_path_retention_policy=all
+}