diff --git a/app/Nova/Actions/MakePaymentNovaVisaMaster.php b/app/Nova/Actions/MakePaymentNovaVisaMaster.php
index 70a1bdb..dd3cc93 100644
--- a/app/Nova/Actions/MakePaymentNovaVisaMaster.php
+++ b/app/Nova/Actions/MakePaymentNovaVisaMaster.php
@@ -10,6 +10,7 @@ use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Facades\Log;
+use Illuminate\Validation\Rule;
 use Laravel\Nova\Actions\Action;
 use Laravel\Nova\Actions\ActionResponse;
 use Laravel\Nova\Fields\ActionFields;
@@ -79,7 +80,7 @@ class MakePaymentNovaVisaMaster extends Action
             Text::make(sprintf('%s (%s)', __('Töleg möçberi'), __('TMT')), 'payment_amount')
                 ->fullWidth()
                 ->required()
-                ->rules('required', 'max:' . $max_value)
+                ->rules('required', 'numeric', Rule::max($max_value))
                 ->help("Iň ýokary möçberi: {$max_value} TMT"),
 
             Text::make(__('USD ekwalendi'), 'usd_rate')