diff --git a/services/history-v1/storage/scripts/retry_failed_backups.sh b/services/history-v1/storage/scripts/retry_failed_backups.sh
index a960a36e8e..39f831ac7d 100644
--- a/services/history-v1/storage/scripts/retry_failed_backups.sh
+++ b/services/history-v1/storage/scripts/retry_failed_backups.sh
@@ -4,5 +4,5 @@ RETRY_TIMEOUT="${RETRY_TIMEOUT:-10000}"
 ids=$(node storage/scripts/backup_scheduler.mjs --show-pending="$RETRY_TIMEOUT" | grep '^{' | jq -r '.projectId' | sort -u)
 # Retry backups for each project ID with a concurrency of 5 blob uploads at a time
 for project_id in $ids ; do
-  LOG_LEVEL=debug node storage/scripts/backup.mjs --projectId="$project_id" -c 5 ;
+  LOG_LEVEL=debug node storage/scripts/backup.mjs --projectId="$project_id" -c 2 ;
 done