diff --git a/app/Exception/ErrException.php b/app/Exception/ErrException.php
index 26ee36e..2c84351 100644
--- a/app/Exception/ErrException.php
+++ b/app/Exception/ErrException.php
@@ -4,6 +4,7 @@ namespace App\Exception;
 
 use App\Constants\ResultCode;
 use Hyperf\Server\Exception\ServerException;
+use Throwable;
 
 class ErrException extends ServerException
 {