diff --git a/test/Hussy.Net.Analyzers.Tests/Hussy.Net.Analyzers.Tests.csproj b/test/Hussy.Net.Analyzers.Tests/Hussy.Net.Analyzers.Tests.csproj
index 29ae380..59530d4 100644
--- a/test/Hussy.Net.Analyzers.Tests/Hussy.Net.Analyzers.Tests.csproj
+++ b/test/Hussy.Net.Analyzers.Tests/Hussy.Net.Analyzers.Tests.csproj
@@ -5,10 +5,11 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.XUnit" Version="1.1.2"/>
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.CodeFix.Testing.XUnit" Version="1.1.2"/>
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
-        <PackageReference Include="xunit" Version="2.8.1"/>
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Analyzer.Testing.XUnit" Version="1.1.2" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.CodeFix.Testing.XUnit" Version="1.1.2" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+        <PackageReference Include="xunit" Version="2.8.1" />
+        <PackageReference Include="xunit.assert" Version="2.9.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
diff --git a/test/Hussy.Net.Tests/Hussy.Net.Tests.csproj b/test/Hussy.Net.Tests/Hussy.Net.Tests.csproj
index 2693e0b..3cfc052 100644
--- a/test/Hussy.Net.Tests/Hussy.Net.Tests.csproj
+++ b/test/Hussy.Net.Tests/Hussy.Net.Tests.csproj
@@ -8,6 +8,7 @@
     <PackageReference Include="JetBrains.Annotations" Version="2024.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="xunit" Version="2.8.1" />
+    <PackageReference Include="xunit.assert" Version="2.9.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>