diff --git a/sphinx_typo3_theme/layout.html b/sphinx_typo3_theme/layout.html
index ee4e919..ba5d9dc 100644
--- a/sphinx_typo3_theme/layout.html
+++ b/sphinx_typo3_theme/layout.html
@@ -54,7 +54,13 @@
 {%- endfor %}
     <link rel="stylesheet" type="text/css" href="{{ pathto('_static/css/fontawesome.css', 1) }}" />
     <link rel="stylesheet" type="text/css" href="{{ pathto('_static/css/webfonts.css', 1) }}" />
-    <link rel="stylesheet" type="text/css" href="{{ pathto('_static/' + style, 1) }}" />
+    {# Sphinx >= 5.1 uses a styles list instead, only define that ourselves if not already existing #}
+    {%- if styles is not defined %}
+      {% set styles = [style] %}
+    {%- endif %}
+    {%- for style in styles %}
+      <link rel="stylesheet" type="text/css" href="{{ pathto('_static/' + style, 1) }}" />
+    {%- endfor %}
     <link rel="stylesheet" type="text/css" href="{{ pathto('_static/css/codeblock.css', 1) }}" />
 <!-- linktags -->
 {%- block linktags %}