diff --git a/CsvLib.Tests/ByteArraySearcherTests.cs b/CsvLib.Tests/ByteArraySearcherTests.cs
index 6ed58fa..0eea1ed 100644
--- a/CsvLib.Tests/ByteArraySearcherTests.cs
+++ b/CsvLib.Tests/ByteArraySearcherTests.cs
@@ -1,7 +1,6 @@
 
 namespace CvsLib.Tests;
 
-[TestSubject(typeof(ByteArraySearcher))]
 public class ByteArraySearcherTests
 {
     [Fact]
@@ -9,7 +8,7 @@ public class ByteArraySearcherTests
     {
         // --- Arrange
         byte[] haystack = [1, 2, 3, 4, 5,];
-        byte[] needle = Array.Empty<byte>();
+        byte[] needle = [];
         ByteArraySearcher searcher = new(needle);
 
         // --- Act
diff --git a/CsvLib.Tests/CsvFieldIndexerTests.cs b/CsvLib.Tests/CsvFieldIndexerTests.cs
index f55edcc..ae84539 100644
--- a/CsvLib.Tests/CsvFieldIndexerTests.cs
+++ b/CsvLib.Tests/CsvFieldIndexerTests.cs
@@ -2,7 +2,6 @@ using System.Text;
 
 namespace CvsLib.Tests;
 
-[TestSubject(typeof(CsvFieldIndexer))]
 public class CsvFieldIndexerTests
 {
     #region GenerateIndex
diff --git a/CsvLib.Tests/CsvLib.Tests.csproj b/CsvLib.Tests/CsvLib.Tests.csproj
index d8038ae..12ab80d 100644
--- a/CsvLib.Tests/CsvLib.Tests.csproj
+++ b/CsvLib.Tests/CsvLib.Tests.csproj
@@ -10,7 +10,6 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="JetBrains.Annotations" Version="2023.3.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
         <PackageReference Include="xunit" Version="2.4.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
diff --git a/CsvLib.Tests/CsvParserTest.cs b/CsvLib.Tests/CsvParserTest.cs
index 16fff83..b63358b 100644
--- a/CsvLib.Tests/CsvParserTest.cs
+++ b/CsvLib.Tests/CsvParserTest.cs
@@ -1,7 +1,6 @@
 
 namespace CvsLib.Tests;
 
-[TestSubject(typeof(CsvParser))]
 public class CsvParserTest
 {
     #region Parse
diff --git a/CsvLib.Tests/Usings.cs b/CsvLib.Tests/Usings.cs
index 5b99ace..7df6756 100644
--- a/CsvLib.Tests/Usings.cs
+++ b/CsvLib.Tests/Usings.cs
@@ -1,3 +1,2 @@
 global using Xunit;
-global using JetBrains.Annotations;
 global using CsvLib;
\ No newline at end of file