diff --git a/examples/simple-app-docker/Dockerfile b/examples/simple-app-docker/Dockerfile
index f48d743..1d11ac0 100644
--- a/examples/simple-app-docker/Dockerfile
+++ b/examples/simple-app-docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.13.0a2-slim
+FROM python:3.13.0a3-slim
 
 WORKDIR /usr/src/app