diff --git a/src/Core/CoreConstants.php b/src/Core/CoreConstants.php
index c6768059..d3e035be 100644
--- a/src/Core/CoreConstants.php
+++ b/src/Core/CoreConstants.php
@@ -297,7 +297,7 @@ class CoreConstants
      * The Request source header value.
      * @var string REQUESTSOURCEHEADER
      */
-    const USERAGENT = "V3PHPSDK6.0.6";
+    const USERAGENT = "V3PHPSDK6.1.0";
 
     public static function getType($string, $return=1)
     {