diff --git a/c-sharp/Check.Tests/Check.Tests.csproj b/c-sharp/Check.Tests/Check.Tests.csproj
index c19a3b0..70707f2 100644
--- a/c-sharp/Check.Tests/Check.Tests.csproj
+++ b/c-sharp/Check.Tests/Check.Tests.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup> 
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
-    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit" Version="2.5.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>