diff --git a/.readthedocs.yml b/.readthedocs.yml
index 2ee53975..0042c121 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,7 +1,11 @@
 version: 2
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.7"
+
 python:
-   version: "3.7"
    install:
       - requirements: docs/requirements-rtd.txt
       # no - method: pip here, -e . is already in docs/requirements-rtd.txt