Update readthedocs.yml

PySimpleGUI · PySimpleGUI · commit 1ee5a7f9d246 · 2023-10-27T11:49:01.000-04:00
diff --git a/readthedocs.yml b/readthedocs.yml
@@ -3,7 +3,9 @@ version: 2
 version: 2
 build:
   os: "ubuntu-22.04"
-
+  tools:
+    python: "3.11"
+    
 python:
   install:
     - requirements: docs/requirements.txt
