diff --git a/README.md b/README.md
index 382313a7..98fda723 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ First time using Mercado Pago? Create your [Mercado Pago account](https://www.me
 2. Install PHP SDK for MercadoPago running in command line:
 
 ```
-composer require "mercadopago/dx-php:3.0.3"
+composer require "mercadopago/dx-php:3.0.4"
 ```
 
 > You can also run _composer require "mercadopago/dx-php:2.6.2"_ for PHP7.1 or _composer require "mercadopago/dx-php:1.12.6"_ for PHP5.6.
diff --git a/src/MercadoPago/MercadoPagoConfig.php b/src/MercadoPago/MercadoPagoConfig.php
index 0956ea18..3d43a7f7 100644
--- a/src/MercadoPago/MercadoPagoConfig.php
+++ b/src/MercadoPago/MercadoPagoConfig.php
@@ -10,7 +10,7 @@
 class MercadoPagoConfig
 {
     /** @var string Mercado Pago SDK version. */
-    public static string $CURRENT_VERSION = "3.0.3";
+    public static string $CURRENT_VERSION = "3.0.4";
 
     /** @var string Mercado Pago Base URL */
     public static string $BASE_URL = "https://api.mercadopago.com";
diff --git a/src/MercadoPago/Resources/MerchantOrder/Payer.php b/src/MercadoPago/Resources/MerchantOrder/Payer.php
index 516add4e..28944b6d 100644
--- a/src/MercadoPago/Resources/MerchantOrder/Payer.php
+++ b/src/MercadoPago/Resources/MerchantOrder/Payer.php
@@ -9,4 +9,7 @@ class Payer
 
     /** Payer nickname. */
     public ?string $nickname;
+
+    /** Payer email. */
+    public ?string $email;
 }
diff --git a/src/MercadoPago/Resources/MerchantOrder/Payment.php b/src/MercadoPago/Resources/MerchantOrder/Payment.php
index 51083409..2d7e78f8 100644
--- a/src/MercadoPago/Resources/MerchantOrder/Payment.php
+++ b/src/MercadoPago/Resources/MerchantOrder/Payment.php
@@ -22,9 +22,12 @@ class Payment
     /** Payment status. */
     public ?string $status;
 
-    /** Gives more detailed information on the current state or rejection cause. */
+    /** @deprecated deprecated since SDK version 3.0.4. */
     public ?string $status_details;
 
+    /** Gives more detailed information on the current state or rejection cause. */
+    public ?string $status_detail;
+
     /** Operation type. */
     public ?string $operation_type;