diff --git a/tests/Prometheus.Client.DependencyInjection.Tests.csproj b/tests/Prometheus.Client.DependencyInjection.Tests.csproj
index a5819c3..2aa4676 100644
--- a/tests/Prometheus.Client.DependencyInjection.Tests.csproj
+++ b/tests/Prometheus.Client.DependencyInjection.Tests.csproj
@@ -36,7 +36,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="xunit" Version="2.6.5" />
+    <PackageReference Include="xunit" Version="2.6.6" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\src\Prometheus.Client.DependencyInjection.csproj" />