diff --git a/sphinx/environment/__init__.py b/sphinx/environment/__init__.py
index b5b13524122..07c003b3e0d 100644
--- a/sphinx/environment/__init__.py
+++ b/sphinx/environment/__init__.py
@@ -41,7 +41,7 @@
     'embed_images': False,
     'embed_stylesheet': False,
     'cloak_email_addresses': True,
-    'pep_base_url': 'https://www.python.org/dev/peps/',
+    'pep_base_url': 'https://peps.python.org/',
     'pep_references': None,
     'rfc_base_url': 'https://datatracker.ietf.org/doc/html/',
     'rfc_references': None,