diff --git a/.readthedocs.yml b/.readthedocs.yml
index 3f2fadac45..70821fa977 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,6 +1,8 @@
 # See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
 
 version: 2
+build:
+  os: ubuntu-22.04
 sphinx:
   configuration: docs/source/conf.py
 formats: all