diff --git a/.readthedocs.yml b/.readthedocs.yml
index b410d850e9..75480d72a6 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -5,8 +5,9 @@ mkdocs:
 
 build:
   os: ubuntu-22.04
+  tools:
+    python: "3.8"
 
 python:
-  version: 3.8
   install:
     - requirements: doc/requirements.txt