diff --git a/doc/conf.py b/doc/conf.py
index c4f52eb1..ecd59f31 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -43,7 +43,7 @@
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
-html_theme = 'classic'
+html_theme = 'furo'
 html_static_path = ['_static']
 
 # -- Options for HTML help output --------------------------------------------
diff --git a/doc/requirements.txt b/doc/requirements.txt
index 2ca4275e..f4bba38a 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,2 +1,3 @@
 sphinx
 sphinx-autodoc-typehints
+furo