How to detect & redirect to current page number when using paginate? - Laravel 5.5

I have set up pagination and it's working correctly. How do I access the pagination object in my edit function.

E.g: If i update the row on currencies?page=2 it's redirecting me on currencies. How do i set up and redirect to currencies?page=2 on update function if i'm on currencies?page=2.

Controller - index function

public function index()
{
    $currencies = Currency::paginate(5);
    return view('admin.currencies.index')
            ->withCurrencies($currencies);
}

Controller - Edit function

public function edit($id)
{
    $currency = Currency::findOrFail($id);
    return view('admin.currencies.edit')
            ->withCurrency($currency);
}

Controller - Update function

public function update(Request $request, $id)
{
    $currency = Currency::findOrFail($id);
    $currency->name     =   $request->name;
    $currency->rate     =   $request->rate;
    $currency->save();

    return redirect()->route('currencies.index')->with('message', 'Done');
}

Views

via Chebli Mohamed