Problem with Update

I installed Nominatim in my private environment without internet access. I set the parameter updates.enabled: true in the Helm chart. In the variable NOMINATIM_REPLICATION_URL, I specified my own link to the new .osm.pbf file. But when running the update ``` command: - /bin/bash - -ec args: - | NOMINATIM_REPLICATION_MAX_DIFF=5000 nominatim replication --catch-up --threads {{ .Values.updates.threads }} ``` the job still tries to connect to https://planet.openstreetmap.org/replication/minute. How can I properly update in a private network?