diff --git a/keyserver/src/cron/backups.js b/keyserver/src/cron/backups.js
--- a/keyserver/src/cron/backups.js
+++ b/keyserver/src/cron/backups.js
@@ -99,6 +99,7 @@
       '--no-tablespaces',
       '--default-character-set=utf8mb4',
       '--net-buffer-length=523264',
+      '--max-allowed-packet=256M',
       ...extraParams,
       dbConfig.database,
     ],