diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index ccac28b..a468dcb 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"
   commands:
     - pip install -r requirements.txt
     - pip install -r docs/requirements.txt