diff --git a/src/ModelContextProtocol.AspNetCore/ModelContextProtocol.AspNetCore.csproj b/src/ModelContextProtocol.AspNetCore/ModelContextProtocol.AspNetCore.csproj
index 1bc4feb01..7fa8513ae 100644
--- a/src/ModelContextProtocol.AspNetCore/ModelContextProtocol.AspNetCore.csproj
+++ b/src/ModelContextProtocol.AspNetCore/ModelContextProtocol.AspNetCore.csproj
@@ -6,7 +6,7 @@
     <Nullable>enable</Nullable>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <IsPackable>true</IsPackable>
-    <PackageId>ModelContextProtocol.AspNetCore</PackageId>
+    <PackageId>JeffHandley.ModelContextProtocol.AspNetCore.Test</PackageId>
     <Description>ASP.NET Core extensions for the C# Model Context Protocol (MCP) SDK.</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <IsAotCompatible>true</IsAotCompatible>
diff --git a/src/ModelContextProtocol/ModelContextProtocol.csproj b/src/ModelContextProtocol/ModelContextProtocol.csproj
index 6de2d30f1..b876f9e14 100644
--- a/src/ModelContextProtocol/ModelContextProtocol.csproj
+++ b/src/ModelContextProtocol/ModelContextProtocol.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net9.0;net8.0;netstandard2.0</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <IsPackable>true</IsPackable>
-    <PackageId>ModelContextProtocol</PackageId>
+    <PackageId>JeffHandley.ModelContextProtocol.Test</PackageId>
     <Description>.NET SDK for the Model Context Protocol (MCP)</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <LangVersion>preview</LangVersion>