diff --git a/.readthedocs.yml b/.readthedocs.yml
index c37daa1f..d161ec9b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -2,10 +2,14 @@ version: 2
 
 mkdocs:
   configuration: mkdocs.yml
-  fail_on_warning: false
+  fail_on_warning: true
+
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.11"
 
 python:
-  version: 3.6
   install:
     - requirements: pip_require.txt
     - requirements: requirements.txt