diff --git a/src/NUnitFramework/testdata/nunit.testdata.csproj b/src/NUnitFramework/testdata/nunit.testdata.csproj
index 2e451657f7..bbb1640f68 100644
--- a/src/NUnitFramework/testdata/nunit.testdata.csproj
+++ b/src/NUnitFramework/testdata/nunit.testdata.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="System.Security.Principal.Windows" Version="5.0.0" />
   </ItemGroup>
 
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">
     <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="7.0.0" />
   </ItemGroup>
 
diff --git a/src/NUnitFramework/tests/nunit.framework.tests.csproj b/src/NUnitFramework/tests/nunit.framework.tests.csproj
index 35b35fa3e2..4cc4ff8f40 100644
--- a/src/NUnitFramework/tests/nunit.framework.tests.csproj
+++ b/src/NUnitFramework/tests/nunit.framework.tests.csproj
@@ -12,9 +12,12 @@
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>
+  
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">
+    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="7.0.0" />
+  </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="7.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="NUnit.Analyzers" Version="3.6.1" />