diff --git a/.readthedocs.yml b/.readthedocs.yml
index 7cda715627..94ad679ce4 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,6 +1,6 @@
 version: 2
 build:
-  os: ubuntu-20.04
+  os: ubuntu-26.04
   tools:
     python: "3.11"
   jobs: