diff --git a/.readthedocs.yml b/.readthedocs.yml
index 7433053ad..33a1b3d74 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -5,6 +5,10 @@
 # Required
 version: 2
 
+# Build operating system
+build:
+  os: ubuntu-22.04
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: conf.py