diff --git a/.readthedocs.yml b/.readthedocs.yml
index a33ac5305..f0d1ec683 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,11 +1,15 @@
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
 version: 2
 
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.7"
+
 sphinx:
   configuration: containers/docs/conf.py
 
 submodules:
   include:
     - containers/docs/_extensions/haddock-autolink
-
-python:
-  version: 3.7