diff --git a/data/hostname/uffizi.softwareheritage.org.yaml b/data/hostname/uffizi.softwareheritage.org.yaml
--- a/data/hostname/uffizi.softwareheritage.org.yaml
+++ b/data/hostname/uffizi.softwareheritage.org.yaml
@@ -44,6 +44,7 @@
           brokers: "%{alias('swh::deploy::journal::brokers')}"
           prefix: "%{alias('swh::deploy::journal::prefix')}"
           client_id: "swh.storage.journal_writer.%{::swh_hostname.short}"
+          anonymize: true
           producer_config:
             message.max.bytes: 1000000000