diff --git a/src/tests/H.InputSimulator.IntegrationTests/H.InputSimulator.IntegrationTests.csproj b/src/tests/H.InputSimulator.IntegrationTests/H.InputSimulator.IntegrationTests.csproj
index e945af7..15666a6 100644
--- a/src/tests/H.InputSimulator.IntegrationTests/H.InputSimulator.IntegrationTests.csproj
+++ b/src/tests/H.InputSimulator.IntegrationTests/H.InputSimulator.IntegrationTests.csproj
@@ -14,7 +14,7 @@
     </PackageReference>
     <PackageReference Include="HtmlAgilityPack" Version="1.11.54" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.0.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
   </ItemGroup>