diff --git a/django/contrib/sessions/middleware.py b/django/contrib/sessions/middleware.py
index 95ad30ce7fc..cb8c1ff45b8 100644
--- a/django/contrib/sessions/middleware.py
+++ b/django/contrib/sessions/middleware.py
@@ -13,9 +13,7 @@ class SessionMiddleware(MiddlewareMixin):
     # RemovedInDjango40Warning: when the deprecation ends, replace with:
     #   def __init__(self, get_response):
     def __init__(self, get_response=None):
-        self._get_response_none_deprecation(get_response)
-        self.get_response = get_response
-        self._async_check()
+        super().__init__(get_response)
         engine = import_module(settings.SESSION_ENGINE)
         self.SessionStore = engine.SessionStore