Pin down to sphinx<9 because of ablog (#484)

Cadair · web-flow · commit a67bbd1cf722 · 2026-01-20T12:16:00.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -4,7 +4,7 @@ ipython
 jupyter_client
 myst-parser
 nbsphinx
-sphinx
+sphinx<9
 sphinx_reredirects
 sphinx-design
 sphinxcontrib-youtube
