diff --git a/src/Microsoft.DotNet.Build.Tasks.Packaging/tests/Microsoft.DotNet.Build.Tasks.Packaging.Tests.csproj b/src/Microsoft.DotNet.Build.Tasks.Packaging/tests/Microsoft.DotNet.Build.Tasks.Packaging.Tests.csproj
index 836072e09bd..6102ebe028f 100644
--- a/src/Microsoft.DotNet.Build.Tasks.Packaging/tests/Microsoft.DotNet.Build.Tasks.Packaging.Tests.csproj
+++ b/src/Microsoft.DotNet.Build.Tasks.Packaging/tests/Microsoft.DotNet.Build.Tasks.Packaging.Tests.csproj
@@ -18,10 +18,12 @@
   <ItemGroup>
     <PackageReference Include="FluentAssertions" Version="$(FluentAssertionsVersion)" />
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(MicrosoftBuildTasksCoreVersion)"/>
+    <!-- Upgrade System.Security.Cryptography.Xml/6.0.0 which is referenced by Microsoft.Build.Tasks.Core. -->
+    <PackageReference Include="System.Security.Cryptography.Xml" Version="$(SystemSecurityCryptographyXmlVersion)" />
     <PackageReference Include="Newtonsoft.Json" Version="$(NewtonsoftJsonVersion)" />
     <PackageReference Include="NuGet.Packaging" Version="$(NuGetPackagingVersion)" />
   </ItemGroup>
-  
+
   <!-- test packages - these packages aren't needed for compilation but are copied
                        to the output and used for testing. -->
   <ItemGroup>
diff --git a/src/Microsoft.DotNet.SwaggerGenerator/Microsoft.DotNet.SwaggerGenerator.MSBuild/Microsoft.DotNet.SwaggerGenerator.MSBuild.csproj b/src/Microsoft.DotNet.SwaggerGenerator/Microsoft.DotNet.SwaggerGenerator.MSBuild/Microsoft.DotNet.SwaggerGenerator.MSBuild.csproj
index 1a466384641..983bef4a775 100644
--- a/src/Microsoft.DotNet.SwaggerGenerator/Microsoft.DotNet.SwaggerGenerator.MSBuild/Microsoft.DotNet.SwaggerGenerator.MSBuild.csproj
+++ b/src/Microsoft.DotNet.SwaggerGenerator/Microsoft.DotNet.SwaggerGenerator.MSBuild/Microsoft.DotNet.SwaggerGenerator.MSBuild.csproj
@@ -10,6 +10,8 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(MicrosoftBuildTasksCoreVersion)"/>
+    <!-- Upgrade System.Security.Cryptography.Xml/6.0.0 which is referenced by Microsoft.Build.Tasks.Core. -->
+    <PackageReference Include="System.Security.Cryptography.Xml" Version="$(SystemSecurityCryptographyXmlVersion)" />
     <ProjectReference Include="..\Microsoft.DotNet.SwaggerGenerator.CodeGenerator\Microsoft.DotNet.SwaggerGenerator.CodeGenerator.csproj" />
   </ItemGroup>