diff --git a/docs/conf.py b/docs/conf.py
index 801116bc..962eb409 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -9,6 +9,7 @@
     "sphinx.ext.autodoc",
     "sphinx.ext.intersphinx",
     "sphinx_autodoc_typehints",
+    "sphinx_rtd_theme",
 ]
 
 templates_path = ["_templates"]