diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 30ebad0..97487d8 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -4,6 +4,9 @@ version: 2
 sphinx:
    configuration: docs/conf.py
 
+build:
+  os: "ubuntu-22.04"
+
 # Optionally set the version of Python and requirements required to build your docs
 python:
    version: "3.9"