diff --git a/doc/_themes/pretix_theme/layout.html b/doc/_themes/pretix_theme/layout.html
index 681aa9dec9..da860bff30 100644
--- a/doc/_themes/pretix_theme/layout.html
+++ b/doc/_themes/pretix_theme/layout.html
@@ -18,67 +18,82 @@
   <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
   {% endblock %}
 
-  {# FAVICON #}
-  {% if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-  {% endif %}
-  {# CANONICAL URL #}
-  {% if theme_canonical_url %}
+
+  {#- CSS #}
+  {%- for css in css_files %}
+    {%- if css|attr("rel") %}
+      <link rel="{{ css.rel }}" href="{{ pathto(css.filename, 1) }}" type="text/css"{% if css.title is not none %} title="{{ css.title }}"{% endif %} />
+    {%- else %}
+      <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+    {%- endif %}
+  {%- endfor %}
+
+  {%- for cssfile in extra_css_files %}
+    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
+  {%- endfor -%}
+
+  {#- FAVICON
+      favicon_url is the only context var necessary since Sphinx 4.
+      In Sphinx<4, we use favicon but need to prepend path info.
+  #}
+  {%- set _favicon_url = favicon_url | default(pathto('_static/' + (favicon or ""), 1)) %}
+  {%- if favicon_url or favicon %}
+    <link rel="shortcut icon" href="{{ _favicon_url }}"/>
+  {%- endif %}
+
+  {#- CANONICAL URL (deprecated) #}
+  {%- if theme_canonical_url and not pageurl %}
     <link rel="canonical" href="{{ theme_canonical_url }}{{ pagename }}.html"/>
-  {% endif %}
+  {%- endif -%}
 
-  {# CSS #}
+  {#- CANONICAL URL #}
+  {%- if pageurl %}
+    <link rel="canonical" href="{{ pageurl|e }}" />
+  {%- endif -%}
 
-  {# OPENSEARCH #}
-  {% if not embedded %}
-    {% if use_opensearch %}
-      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {% endif %}
+  {#- JAVASCRIPTS #}
+  {%- block scripts %}
+  <!--[if lt IE 9]>
+    <script src="{{ pathto('_static/js/html5shiv.min.js', 1) }}"></script>
+  <![endif]-->
+  {%- if not embedded %}
+  {# XXX Sphinx 1.8.0 made this an external js-file, quick fix until we refactor the template to inherert more blocks directly from sphinx #}
+      {%- for scriptfile in script_files %}
+        {{ js_tag(scriptfile) }}
+      {%- endfor %}
+    <script src="{{ pathto('_static/js/theme.js', 1) }}"></script>
 
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-
-  {% for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {% for cssfile in extra_css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
+    {#- OPENSEARCH #}
+    {%- if use_opensearch %}
+    <link rel="search" type="application/opensearchdescription+xml"
+          title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}"
+          href="{{ pathto('_static/opensearch.xml', 1) }}"/>
+    {%- endif %}
+  {%- endif %}
+  {%- endblock %}
 
   {%- block linktags %}
     {%- if hasdoc('about') %}
-        <link rel="author" title="{{ _('About these documents') }}"
-              href="{{ pathto('about') }}"/>
+    <link rel="author" title="{{ _('About these documents') }}" href="{{ pathto('about') }}" />
     {%- endif %}
     {%- if hasdoc('genindex') %}
-        <link rel="index" title="{{ _('Index') }}"
-              href="{{ pathto('genindex') }}"/>
+    <link rel="index" title="{{ _('Index') }}" href="{{ pathto('genindex') }}" />
     {%- endif %}
     {%- if hasdoc('search') %}
-        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
+    <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}" />
     {%- endif %}
     {%- if hasdoc('copyright') %}
-        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
-    {%- if parents %}
-        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
+    <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}" />
     {%- endif %}
     {%- if next %}
-        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
+    <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}" />
     {%- endif %}
     {%- if prev %}
-        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
+    <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}" />
     {%- endif %}
   {%- endblock %}
   {%- block extrahead %} {% endblock %}
 
-  {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
-  <script src="{{ pathto('_static/js/modernizr.min.js', 1) }}"></script>
-
 </head>
 
 <body class="wy-body-for-nav" role="document">
diff --git a/doc/_themes/pretix_theme/search.html b/doc/_themes/pretix_theme/search.html
index e3aa9b5c6e..c9776969df 100644
--- a/doc/_themes/pretix_theme/search.html
+++ b/doc/_themes/pretix_theme/search.html
@@ -5,31 +5,37 @@
     Template for the search page.
 
     :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
+    :license: BSD, see https://github.com/sphinx-doc/sphinx/blob/master/LICENSE for details.
 #}
 {%- extends "layout.html" %}
 {% set title = _('Search') %}
-{% set script_files = script_files + ['_static/searchtools.js'] %}
+{% set display_vcs_links = False %}
+{%- block scripts %}
+    {{ super() }}
+    <script src="{{ pathto('_static/searchtools.js', 1) }}"></script>
+    <script src="{{ pathto('_static/language_data.js', 1) }}"></script>
+{%- endblock %}
 {% block footer %}
-  <script type="text/javascript">
+  <script>
     jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
   </script>
   {# this is used when loading the search index using $.ajax fails,
      such as on Chrome for documents on localhost #}
-  <script type="text/javascript" id="searchindexloader"></script>
+  <script id="searchindexloader"></script>
   {{ super() }}
 {% endblock %}
 {% block body %}
   <noscript>
   <div id="fallback" class="admonition warning">
     <p class="last">
-      {% trans %}Please activate JavaScript to enable the search
+      {% trans trimmed %}Please activate JavaScript to enable the search
       functionality.{% endtrans %}
     </p>
   </div>
   </noscript>
 
   {% if search_performed %}
+    {# Translators: Search is a noun, not a verb #}
     <h2>{{ _('Search Results') }}</h2>
     {% if not search_results %}
       <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
@@ -47,4 +53,4 @@
     </ul>
   {% endif %}
   </div>
-{% endblock %}
+{% endblock %}
\ No newline at end of file
diff --git a/doc/conf.py b/doc/conf.py
index 337027aff1..04be9c765d 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -49,6 +49,7 @@ extensions = [
     'sphinx.ext.coverage',
     'sphinxcontrib.httpdomain',
     'sphinxcontrib.images',
+    'sphinxcontrib.jquery',
     'sphinxemoji.sphinxemoji',
 ]
 if HAS_PYENCHANT:
diff --git a/doc/requirements.rtd.txt b/doc/requirements.rtd.txt
index 9e258d2857..43b7375bce 100644
--- a/doc/requirements.rtd.txt
+++ b/doc/requirements.rtd.txt
@@ -3,6 +3,7 @@ jinja2==3.1.*
 sphinx-rtd-theme
 sphinxcontrib-httpdomain
 sphinxcontrib-images
+sphinxcontrib-jquery
 sphinxcontrib-spelling==7.*
 sphinxemoji
 pygments-markdown-lexer
diff --git a/doc/requirements.txt b/doc/requirements.txt
index bdbc35548d..49c9ac7962 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -4,6 +4,7 @@ jinja2==3.1.*
 sphinx-rtd-theme
 sphinxcontrib-httpdomain
 sphinxcontrib-images
+sphinxcontrib-jquery
 sphinxcontrib-spelling==7.*
 sphinxemoji
 pygments-markdown-lexer