# Change a fleet or scale it

`PATCH /v1/fleets/{fleet}`

**In this build:** Real.

**Scope:** `fleet.write`

**CLI:** `harebox fleet set`

## Request: `FleetInput`

| Field | Type | Notes |
|---|---|---|
| `name` | `string` |  |
| `desired` | `integer` |  |
| `template` | `string` |  |
| `size` | `Size` |  |
| `tier` | `Tier` |  |
| `regions` | `array` |  |
| `spot_fallback` | `string` | One of: `shared`, `wait`, `fail` |
| `labels` | `Labels` |  |
| `budget_usd_month` | `number or null` |  |

## Response: 200

`Fleet`

`Fleet`

Errors follow [one format](../errors.html).