diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index ab8821a05..9e4c23557 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -2,7 +2,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.8"
+    python: "3.9"
 python:
     install:
         - requirements: docs/requirements.txt