diff --git a/tests/Atypical.VirtualFileSystem.GitHub.Tests/Atypical.VirtualFileSystem.GitHub.Tests.csproj b/tests/Atypical.VirtualFileSystem.GitHub.Tests/Atypical.VirtualFileSystem.GitHub.Tests.csproj
index a453ce2..50e7e2f 100644
--- a/tests/Atypical.VirtualFileSystem.GitHub.Tests/Atypical.VirtualFileSystem.GitHub.Tests.csproj
+++ b/tests/Atypical.VirtualFileSystem.GitHub.Tests/Atypical.VirtualFileSystem.GitHub.Tests.csproj
@@ -8,7 +8,7 @@
     <ItemGroup>
         <PackageReference Include="Shouldly" Version="4.3.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
-        <PackageReference Include="NSubstitute" Version="5.3.0" />
+        <PackageReference Include="NSubstitute" Version="6.2.0" />
         <PackageReference Include="xunit" Version="2.9.3" />
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>