diff -r 55d132525155 -r 642e31cb55f0 mercurial/hgweb/wsgiheaders.py
--- a/mercurial/hgweb/wsgiheaders.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/hgweb/wsgiheaders.py	Mon Feb 21 13:08:28 2022 -0700
@@ -29,7 +29,7 @@
         return param
 
 
-class Headers(object):
+class Headers:
     """Manage a collection of HTTP response headers"""
 
     def __init__(self, headers=None):