diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 9c06fca07a..5df6e844bf 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -15,12 +15,14 @@ sphinx:
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-   version: 3.8
    install:
    - requirements: manual/sphinx/requirements.txt
 
 
 build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.8"
   apt_packages:
     - mpich
     - libmpich-dev