diff --git a/tools/testing-tool/TestingTool.AppHost/TestingTool.AppHost.csproj b/tools/testing-tool/TestingTool.AppHost/TestingTool.AppHost.csproj
index 16769d8545..f176dc1113 100644
--- a/tools/testing-tool/TestingTool.AppHost/TestingTool.AppHost.csproj
+++ b/tools/testing-tool/TestingTool.AppHost/TestingTool.AppHost.csproj
@@ -8,10 +8,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Aspire.Hosting.AppHost" Version="13.6.1" />
-    <PackageReference Include="Aspire.Hosting.PostgreSQL" Version="13.6.1" />
-    <PackageReference Include="Aspire.Hosting.RabbitMQ" Version="13.6.1" />
-    <PackageReference Include="Aspire.Hosting.SqlServer" Version="13.6.1" />
+    <PackageReference Include="Aspire.Hosting.AppHost" Version="13.6.4" />
+    <PackageReference Include="Aspire.Hosting.PostgreSQL" Version="13.6.4" />
+    <PackageReference Include="Aspire.Hosting.RabbitMQ" Version="13.6.4" />
+    <PackageReference Include="Aspire.Hosting.SqlServer" Version="13.6.4" />
     <PackageReference Include="Particular.Aspire.Hosting.ServicePlatform" Version="1.1.0" />
   </ItemGroup>
 
@@ -20,7 +20,6 @@
   </ItemGroup>
 
   <ItemGroup Label="Direct references to transitive dependencies to avoid versions with CVE">
-    <PackageReference Include="MessagePack" Version="2.5.303" />
     <PackageReference Include="System.Security.Cryptography.Pkcs" Version="10.0.13" />
   </ItemGroup>
 
diff --git a/tools/testing-tool/global.json b/tools/testing-tool/global.json
index 2ff0584a25..540a9f8b7a 100644
--- a/tools/testing-tool/global.json
+++ b/tools/testing-tool/global.json
@@ -5,6 +5,6 @@
     "rollForward": "latestFeature"
   },
   "msbuild-sdks": {
-    "Aspire.AppHost.Sdk": "13.6.1"
+    "Aspire.AppHost.Sdk": "13.6.4"
   }
 }
\ No newline at end of file