diff --git a/build/Dockerfile.debian11 b/build/Dockerfile.debian11
index be804c2..8fd021b 100644
--- a/build/Dockerfile.debian11
+++ b/build/Dockerfile.debian11
@@ -6,7 +6,7 @@
 # version: 1.2+2022-02-24
 
 
-FROM python:3.6-slim-bullseye as base
+FROM python:3.13-slim-bullseye as base
 
 # Install environment
 RUN apt-get update -y && apt-get upgrade -y && apt-get install -y \