diff --git a/pep-0423.txt b/pep-0423.txt
index 9ee871246..432620cc6 100644
--- a/pep-0423.txt
+++ b/pep-0423.txt
@@ -818,7 +818,7 @@ References and footnotes:
 .. _`The Zen of Python`: http://www.python.org/dev/peps/pep-0020/
 .. _`Plone community`: http://plone.org/community/develop
 .. _`Registering with the Package Index`:
-   http://docs.python.org/dev/packaging/packageindex.html
+   https://docs.python.org/3/distutils/packageindex.html
 .. _`Python Standard Library`:
    http://docs.python.org/library/index.html
 .. _`PEP 345 about Obsolete-Dist`: