diff --git a/samples/snippets/Directory.Build.props b/samples/snippets/Directory.Build.props
new file mode 100644
index 0000000000000..9a02156580e51
--- /dev/null
+++ b/samples/snippets/Directory.Build.props
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+  <PropertyGroup>
+    <LangVersion Condition="$(MSBuildProjectExtension) == '.csproj'">latest</LangVersion>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/samples/snippets/core/testing/unit-testing-using-nunit/csharp/PrimeService/PrimeService.cs b/samples/snippets/core/testing/unit-testing-using-nunit/csharp/PrimeService/PrimeService.cs
index bbf99af976a8c..2bb214530e22d 100644
--- a/samples/snippets/core/testing/unit-testing-using-nunit/csharp/PrimeService/PrimeService.cs
+++ b/samples/snippets/core/testing/unit-testing-using-nunit/csharp/PrimeService/PrimeService.cs
@@ -1,16 +1,15 @@
 using System;
 
-namespace Prime.Services
+namespace Prime.Services;
+
+public class PrimeService
 {
-    public class PrimeService
+    public bool IsPrime(int candidate)
     {
-        public bool IsPrime(int candidate)
+        if (candidate < 2)
         {
-            if (candidate < 2)
-            {
-                return false;
-            }
-            throw new NotImplementedException("Please create a test first");
+            return false;
         }
+        throw new NotImplementedException("Please create a test first");
     }
 }