diff --git a/django-stubs/contrib/sessions/backends/base.pyi b/django-stubs/contrib/sessions/backends/base.pyi
index e3ead61..db17d0e 100644
--- a/django-stubs/contrib/sessions/backends/base.pyi
+++ b/django-stubs/contrib/sessions/backends/base.pyi
@@ -26,8 +26,12 @@ class SessionBase(Dict[str, Any]):
     def is_empty(self) -> bool: ...
     def _get_session_key(self) -> str: ...
     def _set_session_key(self, value: str) -> None: ...
-    session_key = property(_get_session_key)
-    _session_key = property(_get_session_key, _set_session_key)
+    @property
+    def session_key(self) -> str: ...
+    @property
+    def _session_key(self) -> str: ...
+    @_session_key.setter
+    def _session_key(self, value: str) -> None: ...
     def get_expiry_age(self, **kwargs: Any) -> int: ...
     def get_expiry_date(self, **kwargs: Any) -> datetime: ...
     def set_expiry(self, value: Optional[Union[datetime, int]]) -> None: ...