Update Nominatim Server

I have a nominatim Server from GitHub - smithmicro/n7m: Minimalistic Docker images for Nominatim

It works like a charm, but my problem is that I miss some recent changes which I made (eg. R18485777 Vogelweide is not present in my nominatim Server although I made an update to the Index of /europe/austria-updates

What are other replication urls or how can I replicate it from the current state of OSM? I’m only interested in the region of Austria.

Any pointers are very welcome.