diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 309a5e1..aa18b42 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -2,9 +2,7 @@
 version: 2
 
 build:
-  os: 'ubuntu-22.04'
-  tools:
-    python: '3.11'
+  os: 'ubuntu-20.04'
 
 mkdocs:
   configuration: mkdocs.yml