diff --git a/template.yaml b/template.yaml
index 435fa17..af461a2 100644
--- a/template.yaml
+++ b/template.yaml
@@ -16,6 +16,6 @@ Resources:
     Properties:
       CodeUri: hello_world/
       Handler: app.lambda_handler
-      Runtime: python3.9
+      Runtime: python3.12
       Architectures:
         - arm64