diff --git a/_static/custom.css b/_static/custom.css
deleted file mode 100644
index 3b2ff83c2..000000000
--- a/_static/custom.css
+++ /dev/null
@@ -1,21 +0,0 @@
-/* taken from sphinx-codeautolink examples */
-.sphinx-codeautolink-a{
-    border-bottom-color: rgb(0, 0, 0);
-    border-bottom-style: dotted;
-    border-bottom-width: 1px;
-}
-.sphinx-codeautolink-a:hover{
-    color: rgb(255, 139, 139);
-}
-
-.bd-sidebar {
-  overflow-y: auto;
-}
-
-.navbar-brand {
-  display: inline-block !important;
-}
-
-.supportbutton a {
- color: var(--pst-color-sidebar-link-active);
-}
diff --git a/_templates/donate.html b/_templates/donate.html
deleted file mode 100644
index 6de283a35..000000000
--- a/_templates/donate.html
+++ /dev/null
@@ -1,9 +0,0 @@
-{% if "generated" in sourcename %}
-<div class="tocsection editthispage">
-{% else %}
-<div class="tocsection supportbutton">
-{% endif %}
-    <a href="https://numfocus.org/donate-to-pymc3">
-      <i class="far fa-heart"></i> {{ _("Support PyMC") }}
-    </a>
-</div>
diff --git a/_templates/search-field.html b/_templates/search-field.html
deleted file mode 100644
index cd28dbb0e..000000000
--- a/_templates/search-field.html
+++ /dev/null
@@ -1,4 +0,0 @@
-<form class="bd-search d-flex align-items-center" action="https://www.pymc.io/search.html" method="get">
-  <i class="icon fas fa-search"></i>
-  <input type="search" class="form-control" name="q" id="search-input" placeholder="{{ _(theme_search_bar_text) }}" aria-label="{{ theme_search_bar_text }}" autocomplete="off" >
-</form>
diff --git a/examples/conf.py b/examples/conf.py
index d4bd638c7..976531e9f 100644
--- a/examples/conf.py
+++ b/examples/conf.py
@@ -112,35 +112,10 @@ def setup(app: Sphinx):
 # a list of builtin themes.
 
 # theme options
-html_theme = "pydata_sphinx_theme"
+html_theme = "pymc_sphinx_theme"
 html_theme_options = {
-    "icon_links": [
-        {
-            "name": "GitHub",
-            "url": "https://github.com/pymc-devs/pymc-examples",
-            "icon": "fab fa-github-square",
-        },
-        {
-            "name": "Twitter",
-            "url": "https://twitter.com/pymc_devs",
-            "icon": "fab fa-twitter-square",
-        },
-        {
-            "name": "YouTube",
-            "url": "https://www.youtube.com/c/PyMCDevelopers",
-            "icon": "fab fa-youtube",
-        },
-        {
-            "name": "Discourse",
-            "url": "https://discourse.pymc.io",
-            "icon": "fab fa-discourse",
-        },
-    ],
-    "search_bar_text": "Search...",
-    "navbar_end": ["navbar-icon-links.html"],
-    "page_sidebar_items": ["postcard", "page-toc", "edit-this-page", "donate"],
-    "google_analytics_id": "G-6KPRBTE6WV",
-    "header_links_before_dropdown": 6,
+    "secondary_sidebar_items": ["postcard", "page-toc", "edit-this-page", "sourcelink", "donate"],
+    "navbar_start": ["navbar-logo"],
     "logo": {
         "link": "https://www.pymc.io",
     },
@@ -170,7 +145,6 @@ def setup(app: Sphinx):
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ["../_static"]
 html_extra_path = ["../_thumbnails"]
-html_css_files = ["custom.css"]
 templates_path = ["../_templates"]
 html_sidebars = {
     "**": [
diff --git a/requirements-docs.txt b/requirements-docs.txt
index 893d7765a..584f87834 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,6 +1,6 @@
 myst-nb
 sphinx==5.0.2 # see https://github.com/pymc-devs/pymc-examples/issues/409
-pydata_sphinx_theme>=0.11.0
+git+https://github.com/pymc-devs/pymc-sphinx-theme
 sphinx-design
 sphinx-copybutton
 sphinxcontrib-bibtex