diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index bde83135076..bd8bd4ed4ff 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -15,6 +15,8 @@ build:
 sphinx:
    configuration: docs/conf.py
 
+formats: all
+
 python:
    install:
    - requirements: docs/requirements-doc.txt