diff --git a/pytest.ini b/pytest.ini
index 0e4d986..8a38f28 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -3,6 +3,7 @@ norecursedirs=dist build .tox .eggs
 addopts=
 	--doctest-modules
 	--import-mode importlib
+consider_namespace_packages=true
 doctest_optionflags=ALLOW_UNICODE ELLIPSIS
 filterwarnings=
 	## upstream
diff --git a/setup.cfg b/setup.cfg
index 4da1e21..08d1159 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,6 +29,8 @@ install_requires =
 testing =
 	# upstream
 	pytest >= 6
+	# workaround for pytest-dev/pytest#12112
+	pytest@git+https://github.com/pytest-dev/pytest@refs/pull/12169/head
 	pytest-checkdocs >= 2.4
 	pytest-cov
 	pytest-mypy