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## Laravel Wallet UUID > Using uuid greatly reduces package performance. We recommend using int. Often there is a need to store an identifier in uuid/ulid. Since version 9.0 laravel-wallet supports string identifiers, you only need to perform the migration. To simplify the process, you can use a ready-made package. > Attention! It will not work to use UUID instead of ID in wallet models; there is a special uuid field for this. ## Composer The recommended installation method is using [Composer](https://getcomposer.org/). In your project root just run: ```bash composer req bavix/laravel-wallet-uuid ``` Now you need to migrate! After migration, you can use the UUID in your models. You can find implementation examples in the package tests: https://github.com/bavix/laravel-wallet-uuid/tree/master/tests It worked!