diff --git a/src/YurunHttp.php b/src/YurunHttp.php
index f1ab98f..54f40d4 100644
--- a/src/YurunHttp.php
+++ b/src/YurunHttp.php
@@ -24,7 +24,7 @@ abstract class YurunHttp
     /**
      * 版本号.
      */
-    const VERSION = '4.3';
+    const VERSION = '5.0';
 
     /**
      * 设置默认处理器类.
diff --git a/src/YurunHttp/Handler/Swoole.php b/src/YurunHttp/Handler/Swoole.php
index 251a74e..23224d6 100644
--- a/src/YurunHttp/Handler/Swoole.php
+++ b/src/YurunHttp/Handler/Swoole.php
@@ -408,8 +408,8 @@ public function recvDefer($request, $timeout = null)
             }
             else
             {
-                // 状态码为5XX或者0才需要重试
-                $retry = (0 === $statusCode || (5 === (int) ($statusCode / 100)));
+                // 状态码为5XX或者<0才需要重试
+                $retry = ($statusCode <= 0 || (5 === (int) ($statusCode / 100)));
             }
             if ($retry)
             {