diff --git a/pytest.ini b/pytest.ini
index 022a723..9a0f3bc 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,6 +1,9 @@
 [pytest]
 norecursedirs=dist build .tox .eggs
-addopts=--doctest-modules
+addopts=
+	--doctest-modules
+	--import-mode importlib
+consider_namespace_packages=true
 filterwarnings=
 	## upstream
 
diff --git a/setup.cfg b/setup.cfg
index 6fa73b6..f46b6cb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,7 +20,7 @@ install_requires =
 [options.extras_require]
 testing =
 	# upstream
-	pytest >= 6
+	pytest >= 6, != 8.1.1
 	pytest-checkdocs >= 2.4
 	pytest-cov
 	pytest-mypy