diff --git a/cloud_run/Dockerfile b/cloud_run/Dockerfile
index 16539b4..5336865 100644
--- a/cloud_run/Dockerfile
+++ b/cloud_run/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official Python image.
 # https://hub.docker.com/_/python
-FROM python:3.7
+FROM python:3.13.0b3
 
 # Copy local code to the container image.
 ENV APP_HOME /app