diff --git a/test/LibYear.Core.Tests/LibYear.Core.Tests.csproj b/test/LibYear.Core.Tests/LibYear.Core.Tests.csproj
index b14b0c7..004c9e7 100644
--- a/test/LibYear.Core.Tests/LibYear.Core.Tests.csproj
+++ b/test/LibYear.Core.Tests/LibYear.Core.Tests.csproj
@@ -7,7 +7,7 @@
 	<ItemGroup>
 		<PackageReference Include="coverlet.collector" Version="10.0.1" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
-		<PackageReference Include="NSubstitute" Version="6.0.0" />
+		<PackageReference Include="NSubstitute" Version="6.1.0" />
 		<PackageReference Include="xunit" Version="2.9.3" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
 		<ProjectReference Include="../../src/LibYear.Core/LibYear.Core.csproj" />