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
@@ -97,6 +97,7 @@
       '--single-transaction',
       '--no-tablespaces',
       '--default-character-set=utf8mb4',
+      '--net-buffer-length=523264',
       ...extraParams,
       dbConfig.database,
     ],