diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 09f2abd..72264f8 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,14 +1,13 @@
 version: 2
 
 build:
+  os: ubuntu-20.04
   tools:
-    os: ubuntu-20.04
     python: "3.10"
 
 sphinx:
   configuration: docs/conf.py
 
-
 python:
   install:
     - method: pip