diff --git a/csharp/examples/QuickStart.cs b/csharp/examples/QuickStart.cs
index 1bbdebd..2d4a674 100644
--- a/csharp/examples/QuickStart.cs
+++ b/csharp/examples/QuickStart.cs
@@ -21,7 +21,7 @@
     {
         public static void Main()
         {
-            ProducerNormalMessageExample.QuickStart().Wait();
+            // ProducerNormalMessageExample.QuickStart().Wait();
             // ProducerFifoMessageExample.QuickStart().Wait();
             // ProducerDelayMessageExample.QuickStart().Wait();
             // ProducerTransactionMessageExample.QuickStart().Wait();
diff --git a/csharp/rocketmq-client-csharp/rocketmq-client-csharp.csproj b/csharp/rocketmq-client-csharp/rocketmq-client-csharp.csproj
index 6ac85ff..2b5e07c 100644
--- a/csharp/rocketmq-client-csharp/rocketmq-client-csharp.csproj
+++ b/csharp/rocketmq-client-csharp/rocketmq-client-csharp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <PackageId>RocketMQ.Client</PackageId>
-        <PackageVersion>5.1.0-rc1</PackageVersion>
+        <PackageVersion>5.1.0</PackageVersion>
         <Version>$(PackageVersion)</Version>
 
         <Authors>RocketMQ Authors</Authors>