diff --git a/srcpkgs/python3-jupyter_client/template b/srcpkgs/python3-jupyter_client/template
index 7f6ed7b35d8..55a5f7a3b63 100644
--- a/srcpkgs/python3-jupyter_client/template
+++ b/srcpkgs/python3-jupyter_client/template
@@ -1,16 +1,20 @@
 # Template file for 'python3-jupyter_client'
 pkgname=python3-jupyter_client
-version=8.6.2
-revision=2
+version=8.6.3
+revision=1
 build_style=python3-pep517
-# 1st: random fail (see https://github.com/jupyter/jupyter_client/issues/979)
-# 2nd: fail by timeout in ~ 60s
+# random failures (see https://github.com/jupyter/jupyter_client/issues/979)
 make_check_args="
  --deselect tests/test_kernelmanager.py::TestParallel::test_start_parallel_process_kernels[tcp]
- --deselect tests/test_restarter.py::test_restart_check[ipc]"
+ --deselect tests/test_kernelmanager.py::TestParallel::test_start_sequence_kernels[ipc]
+ --deselect tests/test_kernelmanager.py::TestParallel::test_start_sequence_process_kernels[tcp]
+ --deselect tests/test_restarter.py::test_restart_check[ipc]
+ --deselect tests/test_restarter.py::test_async_restart_check[ipc]
+ --deselect tests/test_client.py::TestAsyncKernelClient::test_input_request"
 hostmakedepends="hatchling"
-depends="python3-dateutil python3-jupyter_core python3-pyzmq python3-tornado"
-checkdepends="$depends inetutils-ifconfig iproute2 openssh
+depends="python3-dateutil python3-jupyter_core python3-pyzmq python3-tornado
+ python3-traitlets"
+checkdepends="$depends inetutils-ifconfig iproute2 openssh python3-msgpack
  python3-pytest-jupyter python3-pytest-timeout python3-pytest-xdist"
 short_desc="Jupyter protocol client APIs"
 maintainer="Gonzalo Tornaría <tornaria@cmat.edu.uy>"
@@ -18,7 +22,7 @@ license="BSD-3-Clause"
 homepage="https://github.com/jupyter/jupyter_client"
 changelog="https://raw.githubusercontent.com/jupyter/jupyter_client/main/CHANGELOG.md"
 distfiles="${PYPI_SITE}/j/jupyter_client/jupyter_client-${version}.tar.gz"
-checksum=2bda14d55ee5ba58552a8c53ae43d215ad9868853489213f37da060ced54d8df
+checksum=35b3a0947c4a6e9d589eb97d7d4cd5e90f910ee73101611f01283732bd6d9419
 conflicts="python-jupyter_client<=5.2.4_2"
 make_check=extended  # cannot be tested without python3-ipython_ipykernel