diff --git a/engine/examples/apt-cacher-ng.Dockerfile b/engine/examples/apt-cacher-ng.Dockerfile
index af9d885..eef67b8 100644
--- a/engine/examples/apt-cacher-ng.Dockerfile
+++ b/engine/examples/apt-cacher-ng.Dockerfile
@@ -5,7 +5,7 @@
 # and then you can run containers with:
 #	docker run -t -i --rm -e http_proxy http://dockerhost:3142/ debian bash
 #
-FROM		ubuntu
+FROM		ubuntu:22.10
 
 VOLUME		["/var/cache/apt-cacher-ng"]
 RUN		apt-get update && apt-get install -y apt-cacher-ng