diff --git a/test/Directory.Build.targets b/test/Directory.Build.targets
index 9a950b3..4545a9d 100644
--- a/test/Directory.Build.targets
+++ b/test/Directory.Build.targets
@@ -26,7 +26,7 @@
   <ItemGroup>
     <!-- Due to license change of FluentAssertions, lock to v7 -->
     <PackageReference Include="FluentAssertions" Version="[7.2.2, 8.0.0)" />
-    <PackageReference Include="NSubstitute" Version="6.0.0" />
+    <PackageReference Include="NSubstitute" Version="6.1.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <!-- Prevent Verify/DiffEngine/EmptyFiles from creating excessive files in output folder, when we don't need them. -->
     <PackageReference Include="EmptyFiles" Version="8.17.1" ExcludeAssets="buildTransitive" />