diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 3cc34740bd..7c4f8423a2 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -12,7 +12,7 @@ submodules:
 
 # Set the version of Python and other tools you might need
 build:
-  os: ubuntu-20.04
+  os: ubuntu-26.04
   apt_packages:
     - cmake
   tools: