diff --git a/Doc/tools/extensions/pyspecific.py b/Doc/tools/extensions/pyspecific.py
index 3cf4d236604..4ba5f5a1fbd 100644
--- a/Doc/tools/extensions/pyspecific.py
+++ b/Doc/tools/extensions/pyspecific.py
@@ -39,7 +39,7 @@ except ImportError:
 
 ISSUE_URI = 'https://bugs.python.org/issue?@action=redirect&bpo=%s'
 GH_ISSUE_URI = 'https://github.com/python/cpython/issues/%s'
-SOURCE_URI = 'https://github.com/python/cpython/tree/3.12/%s'
+SOURCE_URI = 'https://github.com/python/cpython/tree/main/%s'
 
 # monkey-patch reST parser to disable alphabetic and roman enumerated lists
 from docutils.parsers.rst.states import Body