diff --git a/src/pytest/__init__.py b/src/pytest/__init__.py
index 777d37740..c1634e296 100644
--- a/src/pytest/__init__.py
+++ b/src/pytest/__init__.py
@@ -69,6 +69,7 @@ from _pytest.warning_types import PytestConfigWarning
 from _pytest.warning_types import PytestDeprecationWarning
 from _pytest.warning_types import PytestExperimentalApiWarning
 from _pytest.warning_types import PytestRemovedIn8Warning
+from _pytest.warning_types import PytestReturnNotNoneWarning
 from _pytest.warning_types import PytestUnhandledCoroutineWarning
 from _pytest.warning_types import PytestUnhandledThreadExceptionWarning
 from _pytest.warning_types import PytestUnknownMarkWarning
@@ -127,6 +128,7 @@ __all__ = [
     "PytestDeprecationWarning",
     "PytestExperimentalApiWarning",
     "PytestRemovedIn8Warning",
+    "PytestReturnNotNoneWarning",
     "Pytester",
     "PytestPluginManager",
     "PytestUnhandledCoroutineWarning",