diff --git a/src/linePay/Client.php b/src/linePay/Client.php
index 90a3c5a..42f0c8f 100644
--- a/src/linePay/Client.php
+++ b/src/linePay/Client.php
@@ -11,7 +11,7 @@
  * LINE Pay Client
  * 
  * @author  Nick Tsai <myintaer@gmail.com>
- * @version 3.3.0
+ * @version 3.3.1
  */
 class Client
 {