diff --git a/Tests/FAnsiTests/FAnsiTests.csproj b/Tests/FAnsiTests/FAnsiTests.csproj
index 331e26f2..b6283fca 100644
--- a/Tests/FAnsiTests/FAnsiTests.csproj
+++ b/Tests/FAnsiTests/FAnsiTests.csproj
@@ -11,7 +11,7 @@
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+    <PackageReference Include="NUnit" Version="4.0.1" />
     <PackageReference Include="NUnit.Analyzers" Version="3.10.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>