diff --git a/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt b/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
index f87a5595e4..2cfc7e93b6 100644
--- a/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
+++ b/OCH/shuttle/driver_weaknet/src/main/java/com/mogo/och/weaknet/repository/db/MyDataBase.kt
@@ -120,6 +120,7 @@ abstract class MyDataBase : RoomDatabase() {
                 .addMigrations(MIGRATION_2_3)
                 .addMigrations(MIGRATION_3_4)
                 .addMigrations(MIGRATION_4_5)
+                .fallbackToDestructiveMigration()
                 .build()
         }
         val ROOT_PATH = Environment.getExternalStorageDirectory().absolutePath + File.separator + "Mogo" + File.separator + "APP_cache" + File.separator //程序外部存储跟目录