diff --git a/test/Soenneker.Utils.AsyncSingleton.Tests.csproj b/test/Soenneker.Utils.AsyncSingleton.Tests.csproj
index 52c49f6..d9c9f24 100644
--- a/test/Soenneker.Utils.AsyncSingleton.Tests.csproj
+++ b/test/Soenneker.Utils.AsyncSingleton.Tests.csproj
@@ -16,7 +16,7 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="Soenneker.Tests.Unit" Version="2.1.54" />
+        <PackageReference Include="Soenneker.Tests.Unit" Version="2.1.56" />
     </ItemGroup>
 
     <ItemGroup>