diff --git a/wchat/qq/SecCheck.php b/wchat/qq/SecCheck.php
index d18e3c2..ddde992 100644
--- a/wchat/qq/SecCheck.php
+++ b/wchat/qq/SecCheck.php
@@ -49,9 +49,11 @@ class SecCheck extends SmallProgram
 		$this->request->addHeader('Content-Type', 'application/json');
 		$this->request->setErrorField('errCode');
 		$this->request->setErrorMsgField('errMsg');
-		return $this->request->post($this->_msgUrl . $this->config->getAccessToken(), [
-			'appid' => $this->config->getAppid(), 'content' => $content
-		]);
+		$this->request->setData(json_encode([
+			'appid' => $this->config->getAppid(),
+			'content' => $content
+		]));
+		return $this->request->post($this->_msgUrl . $this->config->getAccessToken());
 
 	}