diff --git a/doc/conf.py b/doc/conf.py
index 5aa58a3aca5a..505963703ab4 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -383,7 +383,7 @@ def js_tag_with_cache_busting(js):
              "image_light": "images/logo2.svg",
              "image_dark": "images/logo_dark.svg"},
     "navbar_end": ["theme-switcher", "version-switcher", "mpl_icon_links"],
-    "page_sidebar_items": "page-toc.html",
+    "secondary_sidebar_items": "page-toc.html",
 }
 include_analytics = is_release_build
 if include_analytics:
diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index ad0e44d16fa4..e05ed2e75e9d 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -13,7 +13,7 @@ ipython
 ipywidgets
 numpydoc>=1.0
 packaging>=20
-pydata-sphinx-theme>=0.9.0
+pydata-sphinx-theme>=0.12.0
 mpl-sphinx-theme~=3.6.0
 sphinxcontrib-svg2pdfconverter>=1.1.0
 sphinx-gallery>=0.10