diff --git a/run/markdown-preview/renderer/Dockerfile b/run/markdown-preview/renderer/Dockerfile
index ceddd04768b..4ac290f0932 100644
--- a/run/markdown-preview/renderer/Dockerfile
+++ b/run/markdown-preview/renderer/Dockerfile
@@ -14,7 +14,7 @@
 
 # Use the official Python image.
 # https://hub.docker.com/_/python
-FROM python:3.9-slim
+FROM python:3.13.3-slim
 
 # Allow statements and log messages to immediately appear in the Cloud Run logs
 ENV PYTHONUNBUFFERED True