diff --git a/Sample.NetworkClient.Server/Sample.NetworkClient.Server/Sample.NetworkClient.Server.csproj b/Sample.NetworkClient.Server/Sample.NetworkClient.Server/Sample.NetworkClient.Server.csproj
index 031a59b..0991b27 100644
--- a/Sample.NetworkClient.Server/Sample.NetworkClient.Server/Sample.NetworkClient.Server.csproj
+++ b/Sample.NetworkClient.Server/Sample.NetworkClient.Server/Sample.NetworkClient.Server.csproj
@@ -6,7 +6,7 @@
     <RootNamespace>Sample.NetworkClient.Server</RootNamespace>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.1.143" />
+    <PackageReference Include="MessagePack" Version="2.5.187" />
     <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.0.3" />
   </ItemGroup>
   <ItemGroup>