diff --git a/wx/Recharge.php b/wx/Recharge.php
index 2bac32a..46eda48 100644
--- a/wx/Recharge.php
+++ b/wx/Recharge.php
@@ -70,7 +70,7 @@ class Recharge extends Miniprogarampage
 	 * @param $prepay_id
 	 * @return array
 	 */
-	public function toJson($prepay_id)
+	public function receptionSign($prepay_id)
 	{
 		$array = [
 			'appId' => $this->config->getAppid(),