diff --git a/tests/UTF-unknown.Tests.csproj b/tests/UTF-unknown.Tests.csproj
index 9a2767e..3e833de 100644
--- a/tests/UTF-unknown.Tests.csproj
+++ b/tests/UTF-unknown.Tests.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit" Version="4.5.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.1.0" />
   </ItemGroup>