diff --git a/.readthedocs.yml b/.readthedocs.yml
index ec3300dd1..bda03d944 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,6 +1,6 @@
 version: 2
 
-formats: all
+formats: [pdf]
 
 build:
   os: ubuntu-22.04