diff --git a/Dockerfile b/Dockerfile
index b720127ecedd92484cd806fc317d1b40203da825..2d87221076884a138e5f37ace6f5bbec4a506bbb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,9 @@
 ARG DOCKER_REGISTRY=registry.cyberbrain.pw
-FROM $DOCKER_REGISTRY/tools/docker/alpine/main:latest AS base
+
+ARG ALPINE_IMAGE=tools/docker/alpine/main
+ARG ALPINE_TAG=latest
+
+FROM $DOCKER_REGISTRY/$ALPINE_IMAGE:$ALPINE_TAG AS base
 
 FROM base AS builder
 ARG ANSIBLE_BUILD_DEPENDENCIES="build-base cargo libffi-dev musl-dev openssl-dev python3-dev yaml-dev"