diff --git a/Directory.Packages.props b/Directory.Packages.props
index f1fbfd8..7d8ce8f 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -35,7 +35,7 @@
     <PackageVersion Include="Microsoft.Extensions.Options.DataAnnotations" Version="$(MicrosoftExtensionsVersion)" />
     <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="$(MicrosoftExtensionsVersionHttp)" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
-    <PackageVersion Include="NSubstitute" Version="5.3.0" />
+    <PackageVersion Include="NSubstitute" Version="6.0.0" />
     <PackageVersion Include="Npgsql" Version="10.0.3" />
     <PackageVersion Include="NsDepCop" Version="3.0.0" />
     <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.2" />
diff --git a/tests/CleanApiStarter.TestUtilities/CleanApiStarter.TestUtilities.csproj b/tests/CleanApiStarter.TestUtilities/CleanApiStarter.TestUtilities.csproj
index ff57965..1e8c5fc 100644
--- a/tests/CleanApiStarter.TestUtilities/CleanApiStarter.TestUtilities.csproj
+++ b/tests/CleanApiStarter.TestUtilities/CleanApiStarter.TestUtilities.csproj
@@ -10,6 +10,7 @@
         <PackageReference Include="AutoFixture.Xunit3" PrivateAssets="all" />
         <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" />
         <PackageReference Include="Npgsql" />
+        <PackageReference Include="NSubstitute" VersionOverride="6.0.0" />
         <PackageReference Include="System.IdentityModel.Tokens.Jwt" />
         <PackageReference Include="Testcontainers.PostgreSql" />
         <PackageReference Include="xunit.v3.extensibility.core" />