diff --git a/Dockerfile b/Dockerfile
index c8fe466..2b0bc5b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
-FROM python:3.8.18-alpine as base
+FROM python:3.9.18-alpine as base
 
 ENV PYROOT /pyroot
 ENV PYTHONUSERBASE $PYROOT