diff --git a/docs/conf.py b/docs/conf.py
index 124ed0b..7300e51 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,6 +26,7 @@
     "sphinx.ext.viewcode",
     "sphinx.ext.napoleon",
     "sphinx.ext.mathjax",
+    "sphinx_design",
 ]
 autosummary_generate = True
 autoclass_content = "both"