diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index d6b75ee9..38e99ec5 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -11,7 +11,7 @@ sphinx:
 
 # Optionally build your docs in additional formats such as PDF
 formats:
-   - html
+   - pdf
 
 # Optionally set the version of Python and requirements required to build your docs
 python: