--- a/tests/benchmarks/MicroPerf/MicroPerf.fsproj

+++ b/tests/benchmarks/MicroPerf/MicroPerf.fsproj

@@ -9,6 +9,7 @@

     <OtherFlags>$(OtherFlags) --nowarn:57</OtherFlags>

     <OtherFlags>$(OtherFlags) --langversion:preview</OtherFlags>

     <OtherFlags>$(OtherFlags) --define:PREVIEW</OtherFlags>

+    <UseAppHost>false</UseAppHost>

--- a/tests/benchmarks/TaskPerf/TaskPerf.fsproj

+++ b/tests/benchmarks/TaskPerf/TaskPerf.fsproj

@@ -4,6 +4,7 @@

     <TargetFramework>net5.0</TargetFramework>

     <OutputType>Exe</OutputType>

     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>

+    <UseAppHost>false</UseAppHost>

 	<OtherFlags>$(OtherFlags) --nowarn:1204</OtherFlags>