diff --git a/Dockerfile b/Dockerfile
index 84cd595f5f845b36795cbbbb4dbf9719bb877038..c94994a88c3a6c4b209c91edc9edf91146932bb2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG DOCKER_REGISTRY=registry.cyberbrain.pw
-FROM $DOCKER_REGISTRY/tools/docker/alpine:latest AS runtime
+FROM $DOCKER_REGISTRY/tools/docker/alpine/main AS runtime
 
 RUN set -ex && \
     apk --no-cache add rsync openssh-client && \