diff --git a/Tests/Opc.Ua.Client.ComplexTypes.Tests/Opc.Ua.Client.ComplexTypes.Tests.csproj b/Tests/Opc.Ua.Client.ComplexTypes.Tests/Opc.Ua.Client.ComplexTypes.Tests.csproj
index 3af1f6c02f..346e4f9064 100644
--- a/Tests/Opc.Ua.Client.ComplexTypes.Tests/Opc.Ua.Client.ComplexTypes.Tests.csproj
+++ b/Tests/Opc.Ua.Client.ComplexTypes.Tests/Opc.Ua.Client.ComplexTypes.Tests.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit.Console" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0">
diff --git a/Tests/Opc.Ua.Core.Tests/Opc.Ua.Core.Tests.csproj b/Tests/Opc.Ua.Core.Tests/Opc.Ua.Core.Tests.csproj
index 341b9b26bb..88556b0b76 100644
--- a/Tests/Opc.Ua.Core.Tests/Opc.Ua.Core.Tests.csproj
+++ b/Tests/Opc.Ua.Core.Tests/Opc.Ua.Core.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit.Console" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0">
diff --git a/Tests/Opc.Ua.Gds.Tests/Opc.Ua.Gds.Tests.csproj b/Tests/Opc.Ua.Gds.Tests/Opc.Ua.Gds.Tests.csproj
index ee1eb85d8a..9f6a40d8a8 100644
--- a/Tests/Opc.Ua.Gds.Tests/Opc.Ua.Gds.Tests.csproj
+++ b/Tests/Opc.Ua.Gds.Tests/Opc.Ua.Gds.Tests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit.Console" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0">
diff --git a/Tests/Opc.Ua.PubSub.Tests/Opc.Ua.PubSub.Tests.Disabled.csproj b/Tests/Opc.Ua.PubSub.Tests/Opc.Ua.PubSub.Tests.Disabled.csproj
index dd5a5f0c74..3cb6886b03 100644
--- a/Tests/Opc.Ua.PubSub.Tests/Opc.Ua.PubSub.Tests.Disabled.csproj
+++ b/Tests/Opc.Ua.PubSub.Tests/Opc.Ua.PubSub.Tests.Disabled.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit.Console" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0">
diff --git a/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj b/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
index 70d477bf10..9f47ea2cb5 100644
--- a/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
+++ b/Tests/Opc.Ua.Security.Certificates.Tests/Opc.Ua.Security.Certificates.Tests.csproj
@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="NUnit" Version="3.13.1" />
     <PackageReference Include="NUnit.Console" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.17.0">