Method Illuminate\Database\Eloquent\Collection::save does not exist

i have a problem when updating the database

error: Method Illuminate\Database\Eloquent\Collection::save does not exist.

controller:

 public function actualizar(Request $request){
    
    $nuevoIngreso = \App\Models\Servicio::all();
    $nuevoIngreso->costo = $request->costo;
    $nuevoIngreso->duracion = $request->duracion;
    $nuevoIngreso->mantenimiento = $request->mantenimiento;
    $nuevoIngreso->save();
    return redirect('servicios')->with('mensaje', 'Ficha Actualizada.');

}

help please

via Chebli Mohamed