diff --git a/csharp/unit-testing/MSTest.Project/MSTest.Project.csproj b/csharp/unit-testing/MSTest.Project/MSTest.Project.csproj
index 9ea67a5a098..8067940c271 100644
--- a/csharp/unit-testing/MSTest.Project/MSTest.Project.csproj
+++ b/csharp/unit-testing/MSTest.Project/MSTest.Project.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.4.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.4.3" />
     <PackageReference Include="MSTest.TestFramework" Version="3.4.3" />
     <PackageReference Include="coverlet.collector" Version="6.0.2">
       <PrivateAssets>all</PrivateAssets>