diff --git a/src/MercadoLibre/Provider.php b/src/MercadoLibre/Provider.php
index 5e8f97783..0400d55d8 100644
--- a/src/MercadoLibre/Provider.php
+++ b/src/MercadoLibre/Provider.php
@@ -13,6 +13,27 @@ class Provider extends AbstractProvider
 {
     public const IDENTIFIER = 'MERCADOLIBRE';
 
+    public const DOMAINS = [
+        'AR' => 'https://auth.mercadolibre.com.ar',
+        'BO' => 'https://auth.mercadolibre.com.bo',
+        'BR' => 'https://auth.mercadolivre.com.br',
+        'CL' => 'https://auth.mercadolibre.cl',
+        'CO' => 'https://auth.mercadolibre.com.co',
+        'CR' => 'https://auth.mercadolibre.co.cr',
+        'DO' => 'https://auth.mercadolibre.com.do',
+        'EC' => 'https://auth.mercadolibre.com.ec',
+        'GT' => 'https://auth.mercadolibre.com.gt',
+        'HN' => 'https://auth.mercadolibre.com.hn',
+        'MX' => 'https://auth.mercadolibre.com.mx',
+        'NI' => 'https://auth.mercadolibre.com.ni',
+        'PA' => 'https://auth.mercadolibre.com.pa',
+        'PE' => 'https://auth.mercadolibre.com.pe',
+        'PY' => 'https://auth.mercadolibre.com.py',
+        'SV' => 'https://auth.mercadolibre.com.sv',
+        'UY' => 'https://auth.mercadolibre.com.uy',
+        'VE' => 'https://auth.mercadolibre.com.ve',
+    ];
+
     /**
      * {@inheritdoc}
      */
@@ -36,30 +57,9 @@ public static function additionalConfigKeys()
      */
     protected function getAuthUrl($state)
     {
-        $domains = [
-            'AR' => 'https://auth.mercadolibre.com.ar',
-            'BO' => 'https://auth.mercadolibre.com.bo',
-            'BR' => 'https://auth.mercadolivre.com.br',
-            'CL' => 'https://auth.mercadolibre.cl',
-            'CO' => 'https://auth.mercadolibre.com.co',
-            'CR' => 'https://auth.mercadolibre.co.cr',
-            'DO' => 'https://auth.mercadolibre.com.do',
-            'EC' => 'https://auth.mercadolibre.com.ec',
-            'GT' => 'https://auth.mercadolibre.com.gt',
-            'HN' => 'https://auth.mercadolibre.com.hn',
-            'MX' => 'https://auth.mercadolibre.com.mx',
-            'NI' => 'https://auth.mercadolibre.com.ni',
-            'PA' => 'https://auth.mercadolibre.com.pa',
-            'PE' => 'https://auth.mercadolibre.com.pe',
-            'PY' => 'https://auth.mercadolibre.com.py',
-            'SV' => 'https://auth.mercadolibre.com.sv',
-            'UY' => 'https://auth.mercadolibre.com.uy',
-            'VE' => 'https://auth.mercadolibre.com.ve',
-        ];
-
         $countryCode = $this->getConfig('country', 'AR');
 
-        return $this->buildAuthUrlFromBase($domains[$countryCode].'/authorization', $state);
+        return $this->buildAuthUrlFromBase(self::DOMAINS[$countryCode].'/authorization', $state);
     }
 
     /**