diff --git a/src/_pytest/warning_types.py b/src/_pytest/warning_types.py
index 1b11f0106..bb6c242bc 100644
--- a/src/_pytest/warning_types.py
+++ b/src/_pytest/warning_types.py
@@ -6,7 +6,6 @@ from typing import TypeVar
 import attr
 
 from _pytest.compat import final
-from _pytest.compat import sealed
 
 
 class PytestWarning(UserWarning):