diff --git a/composer.json b/composer.json
index 2cf2bea..454a9ca 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
         }
     },
     "require": {
-        "globalpayments/php-sdk": "4.0.5",
+        "globalpayments/php-sdk": "6.0.0",
         "psr/log": "^1.1"
     },
     "require-dev": {
diff --git a/globalpayments-gateway-provider-for-woocommerce.php b/globalpayments-gateway-provider-for-woocommerce.php
index e7db39a..c5e8386 100644
--- a/globalpayments-gateway-provider-for-woocommerce.php
+++ b/globalpayments-gateway-provider-for-woocommerce.php
@@ -3,7 +3,7 @@
  * Plugin Name: GlobalPayments WooCommerce
  * Plugin URI: https://github.com/globalpayments/globalpayments-woocommerce
  * Description: This extension allows WooCommerce to use the available Global Payments payment gateways. All card data is tokenized using the respective gateway's tokenization service.
- * Version: 1.4.1
+ * Version: 1.4.2
  * Requires PHP: 7.1
  * WC tested up to: 6.6.0
  * Author: Global Payments
diff --git a/readme.txt b/readme.txt
index 6b4c523..76d78d7 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,8 +2,8 @@
 Contributors: globalpayments
 Tags: woocommerce, woo, unified, commerce, platform, global, payments, heartland, payment, systems, tsys, genius, 3DS, gateway, token, tokenize, save cards
 Requires at least: 5.4
-Tested up to: 6.0.1
-Stable tag: 1.2.4
+Tested up to: 6.0.4
+Stable tag: 1.4.2
 License: MIT
 License URI: https://github.com/globalpayments/globalpayments-woocommerce/blob/main/LICENSE
 
@@ -48,6 +48,9 @@ Access to our Unified Payments requires sandbox credentials which you can retrie
 
 == Changelog ==
 
+= 1.4.2 =
+* Update PHP-SDK to v6.0.0
+
 = 1.4.1 =
 * Bug fix - fixed for payment failed issue (transIt)
 
diff --git a/src/Plugin.php b/src/Plugin.php
index 231f1cc..e761219 100644
--- a/src/Plugin.php
+++ b/src/Plugin.php
@@ -18,7 +18,7 @@ class Plugin {
 	 *
 	 * @var string
 	 */
-	const VERSION = '1.4.1';
+	const VERSION = '1.4.2';
 
 	/**
 	 * Init the package.