diff --git a/test/test.harness/test.harness.csproj b/test/test.harness/test.harness.csproj
index 579c1a88..26ad2717 100644
--- a/test/test.harness/test.harness.csproj
+++ b/test/test.harness/test.harness.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0</TargetFrameworks>
+    <TargetFrameworks>net462;net472;net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
@@ -9,6 +9,10 @@
     <PackageReference Include="xunit" Version="$(XunitVersion)" />
   </ItemGroup>
 
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net472' ">
+    <Content Include="xunit.runner.json" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\test.testcasefilter\test.testcasefilter.csproj" />
   </ItemGroup>
diff --git a/test/test.harness/xunit.runner.json b/test/test.harness/xunit.runner.json
new file mode 100644
index 00000000..c288610c
--- /dev/null
+++ b/test/test.harness/xunit.runner.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://xunit.net/schema/v2.5/xunit.runner.schema.json",
+  "appDomain": "denied",
+  "diagnosticMessages": true,
+  "methodDisplay": "classAndMethod",
+  "parallelizeAssembly": true
+}