diff --git a/Doc/requirements-oldest-sphinx.txt b/Doc/requirements-oldest-sphinx.txt
index f7e0665bde445d..bc3b2deb915a10 100644
--- a/Doc/requirements-oldest-sphinx.txt
+++ b/Doc/requirements-oldest-sphinx.txt
@@ -17,7 +17,7 @@ python-docs-theme>=2022.1
 Sphinx==3.2.1
 alabaster==0.7.13
 Babel==2.12.1
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==3.1.0
 colorama==0.4.6
 docutils==0.16