diff --git a/README.md b/README.md
index a674821..4c7297f 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ composer require giansalex/peru-consult
 ### Servicios Disponibles
 - Consulta de DNI
 - Consulta de RUC
-- Validez de Usuario SOL (extras)
+- Validez de Usuario SOL (extra)
 
 ### API :cloud:
-Visitar [peru-consult-api](https://github.com/giansalex/peru-consult-api).  
+Ir a [peru-consult-api](https://github.com/giansalex/peru-consult-api).  
diff --git a/docs/ruc.md b/docs/ruc.md
index f0ec140..30495d8 100644
--- a/docs/ruc.md
+++ b/docs/ruc.md
@@ -29,10 +29,6 @@ echo json_encode($company);
 
 ```
 
-!!! tip "Cambiar URL utilizada"
-    Si necesita cambiar la url utilizada internamente para obtener la información del RUC, este es un ejemplo:  
-    `$cs->urlConsult='http://e-consultaruc.sunat.gob.pe/cl-ti-itmrconsruc/jcrS03Alias';`
-
 ## Resultado
 
 Resultado en formato json.
diff --git a/src/Peru/Sunat/Async/Ruc.php b/src/Peru/Sunat/Async/Ruc.php
index fb0b054..497ce0b 100644
--- a/src/Peru/Sunat/Async/Ruc.php
+++ b/src/Peru/Sunat/Async/Ruc.php
@@ -4,11 +4,14 @@
 
 use Peru\Http\Async\ClientInterface;
 use Peru\Sunat\Endpoints;
+use Peru\Sunat\RandomTrait;
 use Peru\Sunat\RucParser;
 use React\Promise\PromiseInterface;
 
 class Ruc
 {
+    use RandomTrait;
+
     /**
      * @var ClientInterface
      */
@@ -34,8 +37,9 @@ public function __construct(ClientInterface $client, RucParser $parser)
     public function get(string $ruc): PromiseInterface
     {
         return $this->client
-            ->getAsync(Endpoints::RANDOM)
-            ->then(function ($random) use ($ruc) {
+            ->getAsync(Endpoints::RANDOM_PAGE)
+            ->then(function ($htmlRandom) use ($ruc) {
+                $random = $this->getRandom($htmlRandom);
                 $url = Endpoints::CONSULT."?accion=consPorRuc&nroRuc=$ruc&numRnd=$random&actReturn=1&modo=1";
 
                 return $this->client->getAsync($url);
diff --git a/src/Peru/Sunat/Endpoints.php b/src/Peru/Sunat/Endpoints.php
index 3f949a0..185c53b 100644
--- a/src/Peru/Sunat/Endpoints.php
+++ b/src/Peru/Sunat/Endpoints.php
@@ -9,4 +9,5 @@ final class Endpoints
     public const CONSULT = 'https://e-consultaruc.sunat.gob.pe/cl-ti-itmrconsruc/jcrS00Alias';
     public const RANDOM = 'https://e-consultaruc.sunat.gob.pe/cl-ti-itmrconsruc/captcha?accion=random';
     public const USER_VALIDEZ = 'https://ww3.sunat.gob.pe/cl-ti-itestadousr/usrS00Alias';
+    public const RANDOM_PAGE = 'https://e-consultaruc.sunat.gob.pe/cl-ti-itmrconsruc/jcrS00Alias?accion=consPorRazonSoc&razSoc=';
 }
diff --git a/src/Peru/Sunat/RandomTrait.php b/src/Peru/Sunat/RandomTrait.php
new file mode 100644
index 0000000..6a424a3
--- /dev/null
+++ b/src/Peru/Sunat/RandomTrait.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Peru\Sunat;
+
+trait RandomTrait
+{
+    private static $Pattern = '/<input type="hidden" name="numRnd" value="(.*)">/';
+
+    private function getRandom(string $html): string
+    {
+        preg_match_all(self::$Pattern, $html, $matches, PREG_SET_ORDER);
+
+        return count($matches) > 0 ? $matches[0][1] : '';
+    }
+}
diff --git a/src/Peru/Sunat/Ruc.php b/src/Peru/Sunat/Ruc.php
index 0f87e69..e1ebb38 100644
--- a/src/Peru/Sunat/Ruc.php
+++ b/src/Peru/Sunat/Ruc.php
@@ -16,6 +16,8 @@
  */
 class Ruc implements RucInterface
 {
+    use RandomTrait;
+
     /**
      * @var ClientInterface
      */
@@ -46,7 +48,9 @@ public function __construct(ClientInterface $client, RucParser $parser)
      */
     public function get(string $ruc): ?Company
     {
-        $random = $this->client->get(Endpoints::RANDOM);
+        $htmlRandom = $this->client->get(Endpoints::RANDOM_PAGE);
+        $random = $this->getRandom($htmlRandom);
+
         $html = $this->client->get(Endpoints::CONSULT."?accion=consPorRuc&nroRuc=$ruc&numRnd=$random&actReturn=1&modo=1");
 
         return $html === false ? null : $this->parser->parse($html);