diff --git a/src/fsc/fsc.targets b/src/fsc/fsc.targets
index e4b7d938cb..9e4e4e4806 100644
--- a/src/fsc/fsc.targets
+++ b/src/fsc/fsc.targets
@@ -4,6 +4,14 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
+
     <NoWarn>$(NoWarn);44</NoWarn> <!-- Obsolete -->
     <NoWarn>$(NoWarn);75</NoWarn> <!-- InternalCommandLineOption -->
     <AllowCrossTargeting>true</AllowCrossTargeting>
diff --git a/src/fsi/fsi.targets b/src/fsi/fsi.targets
index 4ccc4ad664..ce90d34c3c 100644
--- a/src/fsi/fsi.targets
+++ b/src/fsi/fsi.targets
@@ -4,6 +4,13 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
     <NoWarn>$(NoWarn);44</NoWarn> <!-- Obsolete -->
     <AllowCrossTargeting>true</AllowCrossTargeting>
     <OtherFlags>$(OtherFlags) --warnon:1182</OtherFlags>
diff --git a/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.Tests.fsproj b/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.Tests.fsproj
index bbc18f60f1..9e7230e54f 100644
--- a/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.Tests.fsproj
+++ b/tests/FSharp.Compiler.Service.Tests/FSharp.Compiler.Service.Tests.fsproj
@@ -5,6 +5,13 @@
     <OutputType>Exe</OutputType>
     <TargetFrameworks>net472;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="'$(OS)' == 'Unix'">net6.0</TargetFrameworks>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
     <NoWarn>$(NoWarn);44;75;</NoWarn>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <GenerateProgramFile>false</GenerateProgramFile>
diff --git a/tests/PEVerify/PEVerify.csproj b/tests/PEVerify/PEVerify.csproj
index 961cbc6637..d8761bd252 100644
--- a/tests/PEVerify/PEVerify.csproj
+++ b/tests/PEVerify/PEVerify.csproj
@@ -7,6 +7,13 @@
     <TargetFrameworks Condition="'$(OS)' == 'Unix'">net6.0</TargetFrameworks>
     <RuntimeIdentifiers>win-x86;win-x64;linux-x64;osx-x64</RuntimeIdentifiers>
     <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81</AssetTargetFallback>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
     <NoWarn>$(NoWarn);1591</NoWarn>
   </PropertyGroup>
 
diff --git a/tests/benchmarks/CompiledCodeBenchmarks/MicroPerf/MicroPerf.fsproj b/tests/benchmarks/CompiledCodeBenchmarks/MicroPerf/MicroPerf.fsproj
index ca33650ff2..9b89d243be 100644
--- a/tests/benchmarks/CompiledCodeBenchmarks/MicroPerf/MicroPerf.fsproj
+++ b/tests/benchmarks/CompiledCodeBenchmarks/MicroPerf/MicroPerf.fsproj
@@ -2,6 +2,13 @@
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <OutputType>Exe</OutputType>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <!-- Turn off "This function is for use by compiled F# code and should not be used directly" -->
     <OtherFlags>$(OtherFlags) --nowarn:1204</OtherFlags>
diff --git a/tests/benchmarks/CompiledCodeBenchmarks/TaskPerf/TaskPerf/TaskPerf.fsproj b/tests/benchmarks/CompiledCodeBenchmarks/TaskPerf/TaskPerf/TaskPerf.fsproj
index c67780ef89..4d04ba47cb 100644
--- a/tests/benchmarks/CompiledCodeBenchmarks/TaskPerf/TaskPerf/TaskPerf.fsproj
+++ b/tests/benchmarks/CompiledCodeBenchmarks/TaskPerf/TaskPerf/TaskPerf.fsproj
@@ -3,6 +3,13 @@
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <OutputType>Exe</OutputType>
+	<!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>NU1505</NoWarn>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
     <!-- Turn off "This function is for use by compiled F# code and should not be used directly" -->
 	<OtherFlags>$(OtherFlags) --nowarn:1204</OtherFlags>
diff --git a/tests/benchmarks/FCSBenchmarks/CompilerServiceBenchmarks/FSharp.Compiler.Benchmarks.fsproj b/tests/benchmarks/FCSBenchmarks/CompilerServiceBenchmarks/FSharp.Compiler.Benchmarks.fsproj
index edcd2ccfae..ce0203b33e 100644
--- a/tests/benchmarks/FCSBenchmarks/CompilerServiceBenchmarks/FSharp.Compiler.Benchmarks.fsproj
+++ b/tests/benchmarks/FCSBenchmarks/CompilerServiceBenchmarks/FSharp.Compiler.Benchmarks.fsproj
@@ -4,6 +4,13 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>net6.0</TargetFramework>
     <DisableImplicitFSharpCoreReference>true</DisableImplicitFSharpCoreReference>
+    <!-- Workaround to get rid of:
+        error NU1505: Duplicate 'PackageDownload' items found.
+        Remove the duplicate items or use the Update functionality to ensure a consistent restore behavior.
+        The duplicate 'PackageDownload' items are:
+          Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2], Microsoft.NETCore.App.Host.win-x64 [6.0.2].
+    -->
+    <NoWarn>$(NoWarn);NU1505</NoWarn>
   </PropertyGroup>
 
   <ItemGroup>