diff --git a/backend/services/backup-service/prisma/schema.prisma b/backend/services/backup-service/prisma/schema.prisma
index 6e7246b3..7af7efee 100644
--- a/backend/services/backup-service/prisma/schema.prisma
+++ b/backend/services/backup-service/prisma/schema.prisma
@@ -6,6 +6,7 @@ generator client {
 
 datasource db {
   provider = "postgresql"
+  url      = env("DATABASE_URL")
 }
 
 // 备份分片存储