diff --git a/fix-broken-mock-test.patch b/fix-broken-mock-test.patch
new file mode 100644
index 0000000..916c8dc
--- /dev/null
+++ b/fix-broken-mock-test.patch
@@ -0,0 +1,46 @@
+From 28bbaa5a17ed1ac39be63b1ecd9bd7e187a7db2e Mon Sep 17 00:00:00 2001
+From: Henry Schreiner <HenrySchreinerIII@gmail.com>
+Date: Thu, 12 Dec 2024 21:44:02 -0500
+Subject: [PATCH] tests: fix broken mock on CPython 3.12.8+ (#903)
+
+Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
+---
+ nox/command.py        | 4 +++-
+ tests/test_command.py | 2 +-
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+Index: nox-2024.04.15/nox/command.py
+===================================================================
+--- nox-2024.04.15.orig/nox/command.py
++++ nox-2024.04.15/nox/command.py
+@@ -36,6 +36,8 @@ if TYPE_CHECKING:
+ 
+ ExternalType = Literal["error", True, False]
+ 
++_PLATFORM = sys.platform
++
+ 
+ class CommandFailed(Exception):
+     """Raised when an executed command returns a non-success status code."""
+@@ -67,7 +69,7 @@ def _clean_env(env: Mapping[str, str | N
+     clean_env = {k: v for k, v in env.items() if v is not None}
+ 
+     # Ensure systemroot is passed down, otherwise Windows will explode.
+-    if sys.platform == "win32":
++    if _PLATFORM.startswith("win"):
+         clean_env.setdefault("SYSTEMROOT", os.environ.get("SYSTEMROOT", ""))
+ 
+     return clean_env
+Index: nox-2024.04.15/tests/test_command.py
+===================================================================
+--- nox-2024.04.15.orig/tests/test_command.py
++++ nox-2024.04.15/tests/test_command.py
+@@ -157,7 +157,7 @@ def test_run_env_remove(monkeypatch):
+     )
+ 
+ 
+-@mock.patch("sys.platform", "win32")
++@mock.patch("nox.command._PLATFORM", "win32")
+ def test_run_env_systemroot():
+     systemroot = os.environ.setdefault("SYSTEMROOT", "sigil")
+ 
diff --git a/python-nox.changes b/python-nox.changes
index 910a447..5e401ba 100644
--- a/python-nox.changes
+++ b/python-nox.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 19 15:26:17 UTC 2024 - Nico Krapp <nico.krapp@suse.com>
+
+- Add missing requirements
+- Add fix-broken-mock-test.patch to fix testsuite
+
 -------------------------------------------------------------------
 Wed Oct 23 20:29:29 UTC 2024 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-nox.spec b/python-nox.spec
index 18cea4b..6c15531 100644
--- a/python-nox.spec
+++ b/python-nox.spec
@@ -25,7 +25,9 @@ Summary:        Flexible test automation
 License:        Apache-2.0
 URL:            https://nox.thea.codes
 Source:         https://github.com/wntrblm/nox/archive/refs/tags/%{padded_version}.tar.gz#/nox-%{version}.tar.gz
-BuildRequires:  %{python_module base >= 3.5}
+# PATCH-FIX-UPSTREAM fix-broken-mock-test.patch (gh#28bbaa5)
+Patch0:         fix-broken-mock-test.patch
+BuildRequires:  %{python_module base >= 3.8}
 BuildRequires:  %{python_module hatchling}
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module wheel}
@@ -34,8 +36,8 @@ BuildRequires:  git-core
 BuildRequires:  python-rpm-macros
 Requires:       python-argcomplete >= 1.9.4
 Requires:       python-colorlog >= 2.6.1
-Requires:       python-setuptools
 Requires:       python-virtualenv >= 14.0.0
+Requires:       (python-tomli if python-base < 3.11)
 Requires(post): update-alternatives
 Requires(postun): update-alternatives
 Suggests:       python-Jinja2