diff --git a/.readthedocs.yml b/.readthedocs.yml
index 2b765619..3d47a16c 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,7 +1,7 @@
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-lts-latest
   tools:
     python: '3.14'
   apt_packages: