diff --git a/.readthedocs.yml b/.readthedocs.yml
index 474f366d1b..3dcf0e5cf6 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -9,6 +9,6 @@ build:
   image: latest
 
 python:
-  version: 3.9
+  version: 3.8
   install:
     - requirements: docs-requirements.txt