diff --git a/Lib/xmlrpc/server.py b/Lib/xmlrpc/server.py
index 287e324..69a260f 100644
--- a/Lib/xmlrpc/server.py
+++ b/Lib/xmlrpc/server.py
@@ -750,7 +750,7 @@ def markup(self, text, escape=None, funcs={}, classes={}, methods={}):
                 url = 'http://www.rfc-editor.org/rfc/rfc%d.txt' % int(rfc)
                 results.append('<a href="%s">%s</a>' % (url, escape(all)))
             elif pep:
-                url = 'http://www.python.org/dev/peps/pep-%04d/' % int(pep)
+                url = 'https://www.python.org/dev/peps/pep-%04d/' % int(pep)
                 results.append('<a href="%s">%s</a>' % (url, escape(all)))
             elif text[end:end+1] == '(':
                 results.append(self.namelink(name, methods, funcs, classes))