diff --git a/doc/en/_templates/globaltoc.html b/doc/en/_templates/globaltoc.html
deleted file mode 100644
index 5fc1ea13e5b..00000000000
--- a/doc/en/_templates/globaltoc.html
+++ /dev/null
@@ -1,28 +0,0 @@
-<h3><a href="{{ pathto(master_doc) }}">{{ _('Table Of Contents') }}</a></h3>
-
-<ul>
-  <li><a href="{{ pathto('index') }}">Home</a></li>
-  <li><a href="{{ pathto('getting-started') }}">Install</a></li>
-  <li><a href="{{ pathto('contents') }}">Contents</a></li>
-  <li><a href="{{ pathto('reference') }}">API Reference</a></li>
-  <li><a href="{{ pathto('example/index') }}">Examples</a></li>
-  <li><a href="{{ pathto('customize') }}">Customize</a></li>
-  <li><a href="{{ pathto('plugin_list') }}">3rd party plugins</a></li>
-  <li><a href="{{ pathto('changelog') }}">Changelog</a></li>
-  <li><a href="{{ pathto('contributing') }}">Contributing</a></li>
-  <li><a href="{{ pathto('backwards-compatibility') }}">Backwards Compatibility</a></li>
-  <li><a href="{{ pathto('py27-py34-deprecation') }}">Python 2.7 and 3.4 Support</a></li>
-  <li><a href="{{ pathto('sponsor') }}">Sponsor</a></li>
-  <li><a href="{{ pathto('tidelift') }}">pytest for Enterprise</a></li>
-  <li><a href="{{ pathto('license') }}">License</a></li>
-  <li><a href="{{ pathto('contact') }}">Contact Channels</a></li>
-</ul>
-
-{%- if display_toc %}
-  <hr>
-  {{ toc }}
-{%- endif %}
-
-<hr>
-<a href="{{ pathto('genindex') }}">Index</a>
-<hr>
diff --git a/doc/en/_templates/layout.html b/doc/en/_templates/layout.html
deleted file mode 100644
index f7096eaaa5e..00000000000
--- a/doc/en/_templates/layout.html
+++ /dev/null
@@ -1,52 +0,0 @@
-{#
-
-    Copied from:
-
-     https://raw.githubusercontent.com/pallets/pallets-sphinx-themes/b0c6c41849b4e15cbf62cc1d95c05ef2b3e155c8/src/pallets_sphinx_themes/themes/pocoo/layout.html
-
-    And removed the warning version (see #7331).
-
-#}
-
-{% extends "basic/layout.html" %}
-
-{% set metatags %}
-  {{- metatags }}
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-{%- endset %}
-
-{% block extrahead %}
-  {%- if page_canonical_url %}
-    <link rel="canonical" href="{{ page_canonical_url }}">
-  {%- endif %}
-  <script>DOCUMENTATION_OPTIONS.URL_ROOT = '{{ url_root }}';</script>
-  {{ super() }}
-{%- endblock %}
-
-{% block sidebarlogo %}
-  {% if pagename != "index" or theme_index_sidebar_logo %}
-    {{ super() }}
-  {% endif %}
-{% endblock %}
-
-{% block relbar2 %}{% endblock %}
-
-{% block sidebar2 %}
-  <span id="sidebar-top"></span>
-  {{- super() }}
-{%- endblock %}
-
-{% block footer %}
-  {{ super() }}
-  {%- if READTHEDOCS and not readthedocs_docsearch %}
-    <script>
-      if (typeof READTHEDOCS_DATA !== 'undefined') {
-        if (!READTHEDOCS_DATA.features) {
-          READTHEDOCS_DATA.features = {};
-        }
-        READTHEDOCS_DATA.features.docsearch_disabled = true;
-      }
-    </script>
-  {%- endif %}
-  {{ js_tag("_static/version_warning_offset.js") }}
-{% endblock %}
diff --git a/doc/en/_templates/links.html b/doc/en/_templates/links.html
deleted file mode 100644
index c253ecabfd2..00000000000
--- a/doc/en/_templates/links.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<h3>Useful Links</h3>
-<ul>
-  <li><a href="https://pypi.org/project/pytest/">pytest @ PyPI</a></li>
-  <li><a href="https://github.com/pytest-dev/pytest/">pytest @ GitHub</a></li>
-  <li><a href="https://github.com/pytest-dev/pytest/issues">Issue Tracker</a></li>
-  <li><a href="https://media.readthedocs.org/pdf/pytest/latest/pytest.pdf">PDF Documentation</a>
-</ul>
diff --git a/doc/en/_templates/relations.html b/doc/en/_templates/relations.html
deleted file mode 100644
index 3bbcde85bb4..00000000000
--- a/doc/en/_templates/relations.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<h3>Related Topics</h3>
-<ul>
-  <li><a href="{{ pathto(master_doc) }}">Documentation overview</a><ul>
-  {%- for parent in parents %}
-  <li><a href="{{ parent.link|e }}">{{ parent.title }}</a><ul>
-  {%- endfor %}
-    {%- if prev %}
-      <li>Previous: <a href="{{ prev.link|e }}" title="{{ _('previous chapter')
-        }}">{{ prev.title }}</a></li>
-    {%- endif %}
-    {%- if next %}
-      <li>Next: <a href="{{ next.link|e }}" title="{{ _('next chapter')
-        }}">{{ next.title }}</a></li>
-    {%- endif %}
-  {%- for parent in parents %}
-  </ul></li>
-  {%- endfor %}
-  </ul></li>
-</ul>
diff --git a/doc/en/_templates/sidebarintro.html b/doc/en/_templates/sidebarintro.html
deleted file mode 100644
index ae860c172f0..00000000000
--- a/doc/en/_templates/sidebarintro.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<h3>About pytest</h3>
-<p>
-  pytest is a mature full-featured Python testing tool that helps
-  you write better programs.
-</p>
diff --git a/doc/en/_templates/slim_searchbox.html b/doc/en/_templates/slim_searchbox.html
deleted file mode 100644
index e98ad4ed905..00000000000
--- a/doc/en/_templates/slim_searchbox.html
+++ /dev/null
@@ -1,15 +0,0 @@
-{#
-    basic/searchbox.html with heading removed.
-#}
-{%- if pagename != "search" and builder != "singlehtml" %}
-<div id="searchbox" style="display: none" role="search">
-  <div class="searchformwrapper">
-    <form class="search" action="{{ pathto('search') }}" method="get">
-      <input type="text" name="q" aria-labelledby="searchlabel"
-        placeholder="Search"/>
-      <input type="submit" value="{{ _('Go') }}" />
-    </form>
-  </div>
-</div>
-<script type="text/javascript">$('#searchbox').show(0);</script>
-{%- endif %}
diff --git a/doc/en/conf.py b/doc/en/conf.py
index e34ae6856f0..8e6a886bb5a 100644
--- a/doc/en/conf.py
+++ b/doc/en/conf.py
@@ -45,7 +45,6 @@
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
-    "pallets_sphinx_themes",
     "pygments_pytest",
     "sphinx.ext.autodoc",
     "sphinx.ext.autosummary",
@@ -113,7 +112,7 @@
 # show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = "sphinx"
+# pygments_style = "sphinx"
 
 
 # A list of ignored prefixes for module index sorting.
@@ -135,17 +134,14 @@
 
 # -- Options for HTML output ---------------------------------------------------
 
-sys.path.append(os.path.abspath("_themes"))
-html_theme_path = ["_themes"]
-
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = "flask"
+html_theme = "furo"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-# html_theme_options = {"index_logo": None}
+html_theme_options = {"sidebar_hide_name": True}
 
 # Add any paths that contain custom themes here, relative to this directory.
 # html_theme_path = []
@@ -183,23 +179,6 @@
 # html_sidebars = {}
 # html_sidebars = {'index': 'indexsidebar.html'}
 
-html_sidebars = {
-    "index": [
-        "slim_searchbox.html",
-        "sidebarintro.html",
-        "globaltoc.html",
-        "links.html",
-        "sourcelink.html",
-    ],
-    "**": [
-        "slim_searchbox.html",
-        "globaltoc.html",
-        "relations.html",
-        "links.html",
-        "sourcelink.html",
-    ],
-}
-
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
 # html_additional_pages = {}
diff --git a/doc/en/requirements.txt b/doc/en/requirements.txt
index 20246acb750..fe8d5de8270 100644
--- a/doc/en/requirements.txt
+++ b/doc/en/requirements.txt
@@ -1,4 +1,4 @@
-pallets-sphinx-themes
+furo
 pygments-pytest>=2.2.0
 sphinx-removed-in>=0.2.0
 sphinx>=3.1,<4