# Only the mysql2 package is supported for the MySQL client

> Source: https://docs.strapi.io/cms/migration/v4-to-v5/breaking-changes/only-mysql2-package-for-mysql

Strapi 5 only supports the `mysql2` package for MySQL databases and requires the `client` configuration option to be set to `mysql`.

Strapi 5 can only use the `mysql2` package for MySQL databases, and the `client` value for it must be set to `mysql`.

This page is part of the [breaking changes database](/cms/migration/v4-to-v5/breaking-changes) and provides information about the breaking change and additional instructions to migrate from Strapi v4 to Strapi 5.

- Is this breaking change affecting plugins? No
- Is this breaking change automatically handled by a codemod? Yes

## Breaking change description

**In Strapi v4**

The database configuration `client` option for MySQL databases accepts several values such as `mysql` and `mysql2`.

**In Strapi 5**

The database configuration `client` option for MySQL database only accepts `mysql`.

## Migration

This section regroups useful notes and procedures about the introduced breaking change.

### Notes

* Strapi 5 uses the `mysql2` package for SQLite databases under the hood and rewrites the `mysql` option as `mysql2` for Knex.
* Additional information about database clients and configuration can be found in the [database configuration](/cms/configurations/database) documentation.
* Please also consider that MySQL v8 is the minimum required version for Strapi 5 (see the [related breaking change entry](/cms/migration/v4-to-v5/breaking-changes/mysql5-unsupported)).

### Manual procedure

No manual migration should be required as codemods from the [upgrade tool](/cms/upgrade-tool) will handle this change.