diff --git a/wchat/qq/SecCheck.php b/wchat/qq/SecCheck.php
index e08fca0..a989c16 100644
--- a/wchat/qq/SecCheck.php
+++ b/wchat/qq/SecCheck.php
@@ -28,6 +28,7 @@ class SecCheck extends SmallProgram
 		}
 		$this->request->setUseSwoole(false);
 		$this->request->setHeader('Content-Type', 'multipart/form-data');
+		$this->request->addHeader('Host', 'api.q.qq.com');
 		$this->request->setErrorField('errCode');
 		$this->request->setErrorMsgField('errMsg');
 		$this->request->setAgent('');