diff --git a/EchoServerTests/EchoServerTests.csproj b/EchoServerTests/EchoServerTests.csproj
index 1d898da..5b8addf 100644
--- a/EchoServerTests/EchoServerTests.csproj
+++ b/EchoServerTests/EchoServerTests.csproj
@@ -14,7 +14,7 @@
     <PackageReference Include="coverlet.msbuild" Version="6.0.4" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
     <PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="5.2.0" />
   </ItemGroup>
diff --git a/NetSdrClientAppTests/NetSdrClientAppTests.csproj b/NetSdrClientAppTests/NetSdrClientAppTests.csproj
index 47e1c2f..2350e52 100644
--- a/NetSdrClientAppTests/NetSdrClientAppTests.csproj
+++ b/NetSdrClientAppTests/NetSdrClientAppTests.csproj
@@ -17,7 +17,7 @@
 		</PackageReference>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
 		<PackageReference Include="Moq" Version="4.20.72" />
-		<PackageReference Include="NUnit" Version="3.14.0" />
+		<PackageReference Include="NUnit" Version="4.4.0" />
 		<PackageReference Include="NUnit.Analyzers" Version="3.9.0" />
 		<PackageReference Include="NUnit3TestAdapter" Version="5.2.0" />
 	</ItemGroup>