diff --git a/s2oj-backup.sh b/s2oj-backup.sh
index ad2a8f8..b8a9b26 100755
--- a/s2oj-backup.sh
+++ b/s2oj-backup.sh
@@ -9,5 +9,5 @@ fi
 
 rclone sync /data/s2oj baoshuo-s3-de-fra2:s2oj --include "/docker-compose.local.yml" --include "/.config.local.php" --include "/uoj_data/web/data/*.zip" --include "/uoj_data/web/storage/**" --transfers=20 --buffer-size=500M --checkers=20
 /usr/local/bin/docker-compose -f /data/s2oj/docker-compose.local.yml exec uoj-db mysqldump -uroot --password="${MYSQL_ROOT_PASSWORD:-root}" app_uoj233 > "/data/s2oj-db-backup/s2oj-database_$(date +'%F-%H%M%S').sql"
-find /data/s2oj-db-backup/ -mtime +7 -name "*.sql" -exec rm -rf {} \;
+find /data/s2oj-db-backup/ -mtime +14 -name "*.sql" -exec rm -rf {} \;
 rclone sync /data/s2oj-db-backup/ baoshuo-s3-de-fra2:s2oj-db-backup --buffer-size=500M