diff --git a/lib/PartnerAPI.php b/lib/PartnerAPI.php
index c38cac3..3eb658a 100644
--- a/lib/PartnerAPI.php
+++ b/lib/PartnerAPI.php
@@ -10,7 +10,7 @@ class PartnerAPI
     private $clientSecret;
     private $apiBase;
 
-    const VERSION = '0.4.21';
+    const VERSION = '0.4.22';
 
     private $config = array();