diff --git a/tox.ini b/tox.ini
index 1b0a0f7..20b9dc3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,7 +18,7 @@ deps =
     sphinx72: sphinx==7.2.*
     sphinx80: sphinx==8.0.*
     sphinx81: sphinx==8.1.*
-    sphinxdev: git+https://github.com/sphinx-doc/sphinx#egg=sphinx
+    sphinxdev: git+https://github.com/jayaddison/sphinx.git@issue-13462/fix-linkcheck-theme-regression-when-allow-redirects-is-none#egg=sphinx
 
 commands =
     pip freeze