If you did a custom update on one of the plugins, you will have to manually migrate your update.
:::
Copy the fields and relations you had in your `/plugins/users-permissions/models/User.settings.json` and `/plugins/users-permissions/config/jwt.json` file in the new one.
Then, delete your old `plugins` folder and replace it with the new one.
## Production environment
If you deploy your application on a server that you don't have write file access you will have to update your procution config file.
In `config/environments/production/server.json` file you have to add `production` key with `true` as value.
```
{
...
"port": "${process.env.PORT || 1337}",
"production": true,
"proxy": {
"enabled": false
},
...
}
```
<br>
That's all, you have now upgraded to Strapi `alpha.19`.