diff --git a/wchat/qq/SecCheck.php b/wchat/qq/SecCheck.php
index 122f649..501f0a2 100644
--- a/wchat/qq/SecCheck.php
+++ b/wchat/qq/SecCheck.php
@@ -30,7 +30,7 @@ class SecCheck extends SmallProgram
 		$this->request->setHeader('Content-Type', 'multipart/form-data');
 		$this->request->setErrorField('errCode');
 		$this->request->setErrorMsgField('errMsg');
-		return $this->request->post($this->_url . $this->config->getAccessToken(), [
+		return $this->request->upload($this->_url . $this->config->getAccessToken(), [
 			'appid' => $this->config->getAppid(), 'media' => new \CURLFile($path)
 		]);
 	}