diff --git a/.readthedocs.yml b/.readthedocs.yml
index 701be8d5c..56ff39c63 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -21,7 +21,7 @@ sphinx:
 
 # Optionally build your docs in additional formats such as PDF and ePub
 formats:
-  - html
+  - htmlzip
 
 # Optionally set the version of Python and requirements required to build your docs
 python: