diff --git a/src/xunit.runner.visualstudio/xunit.runner.visualstudio.csproj b/src/xunit.runner.visualstudio/xunit.runner.visualstudio.csproj
index 27fd2e1b..a6fcf3d3 100644
--- a/src/xunit.runner.visualstudio/xunit.runner.visualstudio.csproj
+++ b/src/xunit.runner.visualstudio/xunit.runner.visualstudio.csproj
@@ -34,7 +34,7 @@
 
   <ItemGroup>
     <PackageReference Include="xunit.runner.reporters" Version="$(XunitVersion)" PrivateAssets="All" />    
-    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.9.1" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.9.4" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup Label="Package">
diff --git a/test/test.xunit.runner.visualstudio/test.xunit.runner.visualstudio.csproj b/test/test.xunit.runner.visualstudio/test.xunit.runner.visualstudio.csproj
index e290e070..04642143 100644
--- a/test/test.xunit.runner.visualstudio/test.xunit.runner.visualstudio.csproj
+++ b/test/test.xunit.runner.visualstudio/test.xunit.runner.visualstudio.csproj
@@ -12,7 +12,7 @@
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net46' ">
-    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.9.1" />
+    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.9.4" />
   </ItemGroup>
 
   <ItemGroup>