diff --git a/Part 8 - Enhanced MCP Server/ContosoOrdersMcpServer/ContosoOrdersMcpServer.csproj b/Part 8 - Enhanced MCP Server/ContosoOrdersMcpServer/ContosoOrdersMcpServer.csproj
index d0d70b2..4287a37 100644
--- a/Part 8 - Enhanced MCP Server/ContosoOrdersMcpServer/ContosoOrdersMcpServer.csproj	
+++ b/Part 8 - Enhanced MCP Server/ContosoOrdersMcpServer/ContosoOrdersMcpServer.csproj	
@@ -27,7 +27,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="10.0.0-preview.6.25358.103" />
-    <PackageReference Include="ModelContextProtocol" Version="0.3.0-preview.3" />
+    <PackageReference Include="ModelContextProtocol" Version="0.3.0-preview.4" />
   </ItemGroup>
 
 </Project>