diff --git a/src/Adyen/Client.php b/src/Adyen/Client.php
index ec1b69c11..94439504c 100644
--- a/src/Adyen/Client.php
+++ b/src/Adyen/Client.php
@@ -8,7 +8,7 @@
 
 class Client
 {
-    const LIB_VERSION = "5.0.1";
+    const LIB_VERSION = "6.0.0";
     const LIB_NAME = "adyen-php-api-library";
     const USER_AGENT_SUFFIX = "adyen-php-api-library/";
     const ENDPOINT_TEST = "https://pal-test.adyen.com";
@@ -16,11 +16,11 @@ class Client
     const ENDPOINT_LIVE_SUFFIX = "-pal-live.adyenpayments.com";
     const ENDPOINT_TEST_DIRECTORY_LOOKUP = "https://test.adyen.com/hpp/directory/v2.shtml";
     const ENDPOINT_LIVE_DIRECTORY_LOOKUP = "https://live.adyen.com/hpp/directory/v2.shtml";
-    const API_PAYMENT_VERSION = "v40";
-    const API_BIN_LOOKUP_VERSION = "v40";
-    const API_PAYOUT_VERSION = "v30";
-    const API_RECURRING_VERSION = "v25";
-    const API_CHECKOUT_VERSION = "v51";
+    const API_PAYMENT_VERSION = "v51";
+    const API_BIN_LOOKUP_VERSION = "v50";
+    const API_PAYOUT_VERSION = "v51";
+    const API_RECURRING_VERSION = "v49";
+    const API_CHECKOUT_VERSION = "v52";
     const API_CHECKOUT_UTILITY_VERSION = "v1";
     const API_NOTIFICATION_VERSION = "v5";
     const API_ACCOUNT_VERSION = "v5";