diff --git a/.readthedocs.yml b/.readthedocs.yml
index c629fef..bbfbc02 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,11 +1,7 @@
 version: 2
-
-build:
-  os: ubuntu-20.04
-  tools:
-    python: "3.9"
 sphinx:
   configuration: conf.py
 python:
+  version: 3
   install:
     - requirements: requirements.txt