diff --git a/src/NUnitEngine/nunit.engine.core/nunit.engine.core.csproj b/src/NUnitEngine/nunit.engine.core/nunit.engine.core.csproj
index 1432006b6..2f691979e 100644
--- a/src/NUnitEngine/nunit.engine.core/nunit.engine.core.csproj
+++ b/src/NUnitEngine/nunit.engine.core/nunit.engine.core.csproj
@@ -9,7 +9,7 @@
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     <Reference Include="System.Web" />
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-  <ItemGroup Condition="'$(TargetFramework)'=='netstandard1.6' or '$(TargetFramework)'=='netstandard2.0' or '$(TargetFramework)'=='netcoreapp3.1'">
+  <ItemGroup Condition="'$(TargetFramework)'=='netstandard2.0' or '$(TargetFramework)'=='netcoreapp3.1'">
     <PackageReference Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
     <PackageReference Include="System.Reflection" Version="4.3.0" />
     <PackageReference Include="System.Diagnostics.Process" Version="4.3.0" />
diff --git a/src/NUnitEngine/nunit.engine.tests/nunit.engine.tests.csproj b/src/NUnitEngine/nunit.engine.tests/nunit.engine.tests.csproj
index efd9aac94..9ce87fe3c 100644
--- a/src/NUnitEngine/nunit.engine.tests/nunit.engine.tests.csproj
+++ b/src/NUnitEngine/nunit.engine.tests/nunit.engine.tests.csproj
@@ -27,8 +27,6 @@
     <ProjectReference Include="..\mock-assembly\mock-assembly.csproj" />
     <ProjectReference Include="..\nunit.engine.api\nunit.engine.api.csproj" />
     <ProjectReference Include="..\nunit.engine.core\nunit.engine.core.csproj" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'!='netcoreapp1.1'">
     <ProjectReference Include="..\nunit.engine\nunit.engine.csproj" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/NUnitEngine/nunit.engine/nunit.engine.csproj b/src/NUnitEngine/nunit.engine/nunit.engine.csproj
index 996b91b63..343a879b1 100644
--- a/src/NUnitEngine/nunit.engine/nunit.engine.csproj
+++ b/src/NUnitEngine/nunit.engine/nunit.engine.csproj
@@ -9,7 +9,7 @@
     <Reference Include="System.Runtime.Remoting" />
     <Reference Include="System.Web" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='netstandard1.6' or '$(TargetFramework)'=='netstandard2.0' or '$(TargetFramework)'=='netcoreapp3.1'">
+  <ItemGroup Condition="'$(TargetFramework)'=='netstandard2.0' or '$(TargetFramework)'=='netcoreapp3.1'">
     <PackageReference Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
     <PackageReference Include="System.Reflection" Version="4.3.0" />
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