diff --git a/tests/Yoh.Text.Json.NamingPolicies.Tests.csproj b/tests/Yoh.Text.Json.NamingPolicies.Tests.csproj
index 2e362c1..996bf3a 100644
--- a/tests/Yoh.Text.Json.NamingPolicies.Tests.csproj
+++ b/tests/Yoh.Text.Json.NamingPolicies.Tests.csproj
@@ -7,7 +7,7 @@
     <ProjectReference Include="..\src\Yoh.Text.Json.NamingPolicies.csproj" />
     <PackageReference Include="System.Memory" Version="4.5.5" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="xunit" Version="2.6.5" />
+    <PackageReference Include="xunit" Version="2.6.6" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>