diff --git a/docs/Rakefile b/docs/Rakefile
index b0b6a9a5e4..a0c160583d 100644
--- a/docs/Rakefile
+++ b/docs/Rakefile
@@ -30,7 +30,8 @@ task test: :build do
     ],
     ignore_urls: [
       %r{https://formulae.brew.sh"},
-      %r{https://github.com/}
+      %r{https://github.com/},
+      'https://legacy.python.org/dev/peps/pep-0453/#recommendations-for-downstream-distributors',
     ],
     cache: {
       timeframe: {