diff --git a/Dockerfile b/Dockerfile
index d3eca5e..9b98cb4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,8 +32,8 @@ ADD entrypoint.sh /usr/local/bin/entrypoint.sh
 # conf/registries.conf will be mounted RO at runtime to inherit worker settings incl. caching proxies
 ADD --chown=$BUILDUSER:$BUILDUSER conf/containers.conf conf/storage.conf /home/$BUILDUSER/.config/containers
 
-RUN echo -e "$BUILDUSER:1:999\n$BUILDUSER:1001:64535" > /etc/subuid && \
-    echo -e "$BUILDUSER:1:999\n$BUILDUSER:1001:64535" > /etc/subgid && \
+RUN echo -e "$BUILDUSER:100000:65535" > /etc/subuid && \
+    echo -e "$BUILDUSER:100000:65535" > /etc/subgid && \
     cd /usr/bin && ln -s podman docker && \
     chown $BUILDUSER:$BUILDUSER -R /home/$BUILDUSER