diff --git a/tests/NLog.Web.Tests/NLog.Web.Tests.csproj b/tests/NLog.Web.Tests/NLog.Web.Tests.csproj
index 6dd441cf..508ab352 100644
--- a/tests/NLog.Web.Tests/NLog.Web.Tests.csproj
+++ b/tests/NLog.Web.Tests/NLog.Web.Tests.csproj
@@ -13,7 +13,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
-    <PackageReference Include="NSubstitute" Version="5.3.0" />
+    <PackageReference Include="NSubstitute" Version="6.0.0" />
     <PackageReference Include="System.ValueTuple" Version="4.6.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">