diff --git a/test/Directory.Build.props b/test/Directory.Build.props
index 5be9c9a984..9ce264f523 100644
--- a/test/Directory.Build.props
+++ b/test/Directory.Build.props
@@ -27,7 +27,7 @@
     <PackageReference Include="Verify.XUnit" Version="31.9.0" />
     <PackageReference Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageReference Include="JunitXml.TestLogger" Version="8.0.0" />
-    <PackageReference Include="NSubstitute" Version="5.3.0" />
+    <PackageReference Include="NSubstitute" Version="6.0.0" />
     <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.17">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>