diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index bebfc0f..0198f2e 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -4,5 +4,10 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.12"
+formats: all
 sphinx:
   configuration: docs/conf.py
+python:
+  install:
+    - method: pip
+      path: sphinx-rtd-theme