diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 0ce9313..691fce7 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -6,9 +6,9 @@ sphinx:
   configuration: docs/conf.py
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-24.04
   tools:
-    python: "3.10"
+    python: "3.12"
 
 python:
    install:
@@ -16,3 +16,15 @@ python:
    - requirements: requirements.txt
    - method: pip
      path: .
+
+search:
+  ranking:
+    _sources/*: -10
+    _modules/*: -5
+    genindex.html: -9
+
+  ignore:
+    - 404.html
+    - search.html
+    - index.html
+    - 'examples/*'
diff --git a/docs/conf.py b/docs/conf.py
index ba89cb1..8945cef 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -21,7 +21,6 @@
     "sphinx_design",
     "sphinxcontrib.bibtex",
     "sphinx_codeautolink",
-    "sphinx_remove_toctrees",
 ]
 
 # List of patterns, relative to source directory, that match files and
@@ -73,6 +72,7 @@
 html_theme = "pymc_sphinx_theme"
 html_theme_options = {
     "secondary_sidebar_items": ["page-toc", "edit-this-page", "sourcelink", "donate"],
+    "search_bar_text": "Search within PyMC-BART...",
     "navbar_start": ["navbar-logo"],
     "icon_links": [
         {
@@ -80,17 +80,6 @@
             "icon": "fa-brands fa-github",
             "name": "GitHub",
         },
-        {
-            "url": "https://twitter.com/pymc_devs/",
-            "icon": "fa-brands fa-twitter",
-            "name": "Twitter",
-        },
-        {
-            "url": "https://www.youtube.com/c/PyMCDevelopers",
-            "icon": "fa-brands fa-youtube",
-            "name": "YouTube",
-        },
-        {"url": "https://discourse.pymc.io", "icon": "fa-brands fa-discourse", "name": "Discourse"},
     ],
 }
 
@@ -144,23 +133,6 @@
 nb_execution_mode = "off"
 
 
-remove_from_toctrees = [
-    "BART/*",
-    "case_studies/*",
-    "causal_inference/*",
-    "diagnostics_and_criticism/*",
-    "gaussian_processes/*",
-    "generalized_linear_models/*",
-    "mixture_models/*",
-    "ode_models/*",
-    "howto/*",
-    "samplers/*",
-    "splines/*",
-    "survival_analysis/*",
-    "time_series/*",
-    "variational_inference/*",
-]
-
 # bibtex config
 bibtex_bibfiles = ["references.bib"]
 bibtex_default_style = "unsrt"
diff --git a/requirements-docs.txt b/requirements-docs.txt
index 5074a06..214c399 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,8 +1,6 @@
 myst-nb
-sphinx==5.0.2 # see https://github.com/pymc-devs/pymc-examples/issues/409
-git+https://github.com/pymc-devs/pymc-sphinx-theme
+sphinx
+pymc-sphinx-theme>=0.16
 sphinxcontrib-bibtex
-nbsphinx
 sphinx_design
 sphinx_codeautolink
-sphinx_remove_toctrees