diff --git a/Dockerfile b/Dockerfile
index 839d89d..5314d03 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # Dockerfile
 
 # inherit from this "empty base image", see https://hub.docker.com/_/python/
-FROM python:3.12-alpine
+FROM python:3.13-alpine
 
 # take some responsibility for this container
 LABEL org.opencontainers.image.authors="Aarno Aukia <aarno.aukia@vshn.ch>"