diff --git a/GTiff2Tiles.Tests/GTiff2Tiles.Tests.csproj b/GTiff2Tiles.Tests/GTiff2Tiles.Tests.csproj
index e7990a99..3e4b1539 100644
--- a/GTiff2Tiles.Tests/GTiff2Tiles.Tests.csproj
+++ b/GTiff2Tiles.Tests/GTiff2Tiles.Tests.csproj
@@ -23,7 +23,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="NUnit.Analyzers" Version="3.10.0" />
+    <PackageReference Include="NUnit.Analyzers" Version="4.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
   </ItemGroup>