diff --git a/RegexToolbox.Tests/RegexToolbox.Tests.csproj b/RegexToolbox.Tests/RegexToolbox.Tests.csproj
index 412e1e5..655a0ee 100644
--- a/RegexToolbox.Tests/RegexToolbox.Tests.csproj
+++ b/RegexToolbox.Tests/RegexToolbox.Tests.csproj
@@ -9,7 +9,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="NUnit" Version="4.5.1" />
+        <PackageReference Include="NUnit" Version="4.6.0" />
         <PackageReference Include="NUnit3TestAdapter" Version="6.2.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     </ItemGroup>