diff --git a/tests/Elzik.FmSync.Application.Tests.Unit/Elzik.FmSync.Application.Tests.Unit.csproj b/tests/Elzik.FmSync.Application.Tests.Unit/Elzik.FmSync.Application.Tests.Unit.csproj
index b0548ca..16e2e37 100644
--- a/tests/Elzik.FmSync.Application.Tests.Unit/Elzik.FmSync.Application.Tests.Unit.csproj
+++ b/tests/Elzik.FmSync.Application.Tests.Unit/Elzik.FmSync.Application.Tests.Unit.csproj
@@ -28,7 +28,7 @@
     </PackageReference>
     <PackageReference Include="FluentAssertions" Version="6.12.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-    <PackageReference Include="NSubstitute" Version="5.1.0" />
+    <PackageReference Include="NSubstitute" Version="5.3.0" />
     <PackageReference Include="NSubstitute.Analyzers.CSharp" Version="1.0.17">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>