diff --git a/Directory.Packages.props b/Directory.Packages.props
index 6769de2..02bd753 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -6,7 +6,7 @@
   <ItemGroup>
     <PackageVersion Include="BenchmarkDotNet" Version="0.15.8" />
     <PackageVersion Include="FluentValidation" Version="11.11.0" />
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.9" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.10" />
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Hybrid" Version="9.10.0" />
     <!-- TEST-ONLY: FusionCache as a drop-in HybridCache implementation (no production source dependency) -->
diff --git a/test/Paramore.Darker.Core.Tests/Paramore.Darker.Core.Tests.csproj b/test/Paramore.Darker.Core.Tests/Paramore.Darker.Core.Tests.csproj
index f70f255..85d69ef 100644
--- a/test/Paramore.Darker.Core.Tests/Paramore.Darker.Core.Tests.csproj
+++ b/test/Paramore.Darker.Core.Tests/Paramore.Darker.Core.Tests.csproj
@@ -12,6 +12,7 @@
     <ProjectReference Include="..\..\src\Paramore.Darker\Paramore.Darker.csproj" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.analyzers" />
diff --git a/test/Paramore.Darker.Extensions.Diagnostics.Tests/Paramore.Darker.Extensions.Diagnostics.Tests.csproj b/test/Paramore.Darker.Extensions.Diagnostics.Tests/Paramore.Darker.Extensions.Diagnostics.Tests.csproj
index 00942e3..761ffa9 100644
--- a/test/Paramore.Darker.Extensions.Diagnostics.Tests/Paramore.Darker.Extensions.Diagnostics.Tests.csproj
+++ b/test/Paramore.Darker.Extensions.Diagnostics.Tests/Paramore.Darker.Extensions.Diagnostics.Tests.csproj
@@ -13,6 +13,7 @@
     <ProjectReference Include="..\..\src\Paramore.Darker.Extensions.DependencyInjection\Paramore.Darker.Extensions.DependencyInjection.csproj" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.analyzers" />
diff --git a/test/Paramore.Darker.Validation.DataAnnotations.Tests/Paramore.Darker.Validation.DataAnnotations.Tests.csproj b/test/Paramore.Darker.Validation.DataAnnotations.Tests/Paramore.Darker.Validation.DataAnnotations.Tests.csproj
index b11a48b..7b3ac28 100644
--- a/test/Paramore.Darker.Validation.DataAnnotations.Tests/Paramore.Darker.Validation.DataAnnotations.Tests.csproj
+++ b/test/Paramore.Darker.Validation.DataAnnotations.Tests/Paramore.Darker.Validation.DataAnnotations.Tests.csproj
@@ -7,6 +7,7 @@
     <ProjectReference Include="..\..\src\Paramore.Darker.Validation.DataAnnotations\Paramore.Darker.Validation.DataAnnotations.csproj" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.analyzers" />
diff --git a/test/Paramore.Darker.Validation.FluentValidation.Tests/Paramore.Darker.Validation.FluentValidation.Tests.csproj b/test/Paramore.Darker.Validation.FluentValidation.Tests/Paramore.Darker.Validation.FluentValidation.Tests.csproj
index 051d5f9..efa787a 100644
--- a/test/Paramore.Darker.Validation.FluentValidation.Tests/Paramore.Darker.Validation.FluentValidation.Tests.csproj
+++ b/test/Paramore.Darker.Validation.FluentValidation.Tests/Paramore.Darker.Validation.FluentValidation.Tests.csproj
@@ -9,6 +9,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="FluentValidation" />
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.analyzers" />
diff --git a/test/Paramore.Darker.Validation.Tests/Paramore.Darker.Validation.Tests.csproj b/test/Paramore.Darker.Validation.Tests/Paramore.Darker.Validation.Tests.csproj
index 75babd2..ef9bc36 100644
--- a/test/Paramore.Darker.Validation.Tests/Paramore.Darker.Validation.Tests.csproj
+++ b/test/Paramore.Darker.Validation.Tests/Paramore.Darker.Validation.Tests.csproj
@@ -7,6 +7,7 @@
     <ProjectReference Include="..\..\src\Paramore.Darker.Validation\Paramore.Darker.Validation.csproj" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="xunit.v3" />
     <PackageReference Include="xunit.analyzers" />