diff --git a/We.php b/We.php
index f18b422..0173f07 100644
--- a/We.php
+++ b/We.php
@@ -61,6 +61,12 @@ use WeChat\Exceptions\InvalidInstanceException;
  */
 class We
 {
+    /**
+     * 定义当前版本
+     * @var string
+     */
+    const VERSION = '1.1.11';
+
     /**
      * 静态配置
      * @var DataArray