diff --git a/src/IFS.Tests/IFS.Tests.csproj b/src/IFS.Tests/IFS.Tests.csproj
index f482d99..1a922f6 100644
--- a/src/IFS.Tests/IFS.Tests.csproj
+++ b/src/IFS.Tests/IFS.Tests.csproj
@@ -23,7 +23,7 @@
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     <PackageReference Include="dotnet-test-nunit" Version="3.4.0-beta-3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.0.0" />
     <PackageReference Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
   </ItemGroup>