diff --git a/EliteAPI.Tests/EliteAPI.Tests.csproj b/EliteAPI.Tests/EliteAPI.Tests.csproj
index b30304e9..062bd393 100644
--- a/EliteAPI.Tests/EliteAPI.Tests.csproj
+++ b/EliteAPI.Tests/EliteAPI.Tests.csproj
@@ -13,7 +13,7 @@
         <PackageReference Include="FastEndpoints.Testing" Version="8.0.1" />
         <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="10.0.3" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
-        <PackageReference Include="NSubstitute" Version="5.3.0" />
+        <PackageReference Include="NSubstitute" Version="6.0.0" />
         <PackageReference Include="Shouldly" Version="4.3.0"/>
         <PackageReference Include="Testcontainers.PostgreSql" Version="4.10.0" />
         <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.3.0" />