diff --git a/src/JT808.Protocol.Test/JT808SerializerTest.cs b/src/JT808.Protocol.Test/JT808SerializerTest.cs
index 241ef48..888c0c5 100644
--- a/src/JT808.Protocol.Test/JT808SerializerTest.cs
+++ b/src/JT808.Protocol.Test/JT808SerializerTest.cs
@@ -52,7 +52,7 @@ public void MergerTest()
         {
             var config = new DefaultGlobalConfig("merge");
             config.EnableAutoMerge = true;
-            config.AutoMergeTimeoutSecond = 500;
+            config.AutoMergeTimeoutSecond = 5;
             var array = new[]
             {
                 //分包数据第一包