diff --git a/CHANGES b/CHANGES
index 810f2ed22..31f6d1e20 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,7 @@ Features added
 Bugs fixed
 ----------
 
+* #7428: py domain: a reference to class ``None`` emits a nitpicky warning
 * #7423: crashed when giving a non-string object to logger
 
 Testing
diff --git a/sphinx/domains/python.py b/sphinx/domains/python.py
index 64a19fc48..893bb0a22 100644
--- a/sphinx/domains/python.py
+++ b/sphinx/domains/python.py
@@ -1311,7 +1311,7 @@ def builtin_resolver(app: Sphinx, env: BuildEnvironment,
 
     if node.get('refdomain') != 'py':
         return None
-    elif node.get('reftype') == 'obj' and node.get('reftarget') == 'None':
+    elif node.get('reftype') in ('class', 'obj') and node.get('reftarget') == 'None':
         return contnode
     elif node.get('reftype') in ('class', 'exc'):
         reftarget = node.get('reftarget')