diff --git a/new-cli/Directory.Packages.props b/new-cli/Directory.Packages.props
index 0776fcb048..35668ce959 100644
--- a/new-cli/Directory.Packages.props
+++ b/new-cli/Directory.Packages.props
@@ -7,7 +7,7 @@
     <PackageVersion Include="LibGit2Sharp" Version="0.31.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
-    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.3" />
+    <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing" Version="1.1.4" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="5.3.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="5.0.0-1.25277.114" />
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index a92d543bf8..3c47bb7bf6 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <MicrosoftBuildVersion Condition=" '$(TargetFramework)' == 'net8.0' ">17.11.48</MicrosoftBuildVersion>
-    <MicrosoftBuildVersion Condition=" '$(TargetFramework)' == 'net9.0' ">17.14.28</MicrosoftBuildVersion>
+    <MicrosoftBuildVersion Condition=" '$(TargetFramework)' == 'net9.0' ">18.6.3</MicrosoftBuildVersion>
     <MicrosoftBuildVersion Condition=" '$(TargetFramework)' == 'net10.0' ">18.4.0</MicrosoftBuildVersion>
   </PropertyGroup>
   <ItemGroup>