diff --git a/eng/Versions.props b/eng/Versions.props
index 20efc44dcf..2086dc554e 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -73,6 +73,7 @@
     <VSSDKTemplateWizardInterfaceVersion>12.0.4</VSSDKTemplateWizardInterfaceVersion>
     <!-- Libs -->
     <DiffPlexVersion>1.5.0</DiffPlexVersion>
+    <SystemNetHttpVersion>4.3.4</SystemNetHttpVersion>
     <!-- Testing -->
     <MicrosoftCodeAnalysis2PrimaryTestVersion>2.6.1</MicrosoftCodeAnalysis2PrimaryTestVersion>
     <MicrosoftCodeAnalysis3PrimaryTestVersion>3.9.0</MicrosoftCodeAnalysis3PrimaryTestVersion>
diff --git a/samples/Directory.Build.props b/samples/Directory.Build.props
index 4ed5c9361e..cb2ca12de4 100644
--- a/samples/Directory.Build.props
+++ b/samples/Directory.Build.props
@@ -13,4 +13,8 @@
 
   <Import Project="Sdk.props" Sdk="Microsoft.DotNet.Arcade.Sdk" />
 
+  <ItemGroup>
+    <PackageReference Include="System.Net.Http" Version="$(SystemNetHttpVersion)" PrivateAssets="all" ExcludeAssets="all" />
+  </ItemGroup>
+
 </Project>
\ No newline at end of file
diff --git a/src/Microsoft.CodeAnalysis.Testing/Directory.Build.props b/src/Microsoft.CodeAnalysis.Testing/Directory.Build.props
index 8b5745550c..8e9aeed8b1 100644
--- a/src/Microsoft.CodeAnalysis.Testing/Directory.Build.props
+++ b/src/Microsoft.CodeAnalysis.Testing/Directory.Build.props
@@ -88,7 +88,7 @@
   <!-- Public API Analyzer configuration -->
   <ItemGroup>
     <PackageReference Include="Roslyn.Diagnostics.Analyzers" Version="$(RoslynDiagnosticsAnalyzersVersion)" PrivateAssets="all" />
-
+    <PackageReference Include="System.Net.Http" Version="$(SystemNetHttpVersion)" PrivateAssets="all" ExcludeAssets="all" />
     <AdditionalFiles Include="PublicAPI.Shipped.txt" />
     <AdditionalFiles Include="PublicAPI.Unshipped.txt" />
   </ItemGroup>
diff --git a/tests/Microsoft.CodeAnalysis.Testing/Directory.Build.props b/tests/Microsoft.CodeAnalysis.Testing/Directory.Build.props
index eb211b210a..2b6e24ad90 100644
--- a/tests/Microsoft.CodeAnalysis.Testing/Directory.Build.props
+++ b/tests/Microsoft.CodeAnalysis.Testing/Directory.Build.props
@@ -60,6 +60,7 @@
     <PackageReference Include="StyleCop.Analyzers" Version="$(StyleCopAnalyzersVersion)" PrivateAssets="all" />
     <AdditionalFiles Include="$(MSBuildThisFileDirectory)..\..\stylecop.json" Link="stylecop.json" />
     <None Include="$(CodeAnalysisRuleSet)" Condition="'$(CodeAnalysisRuleSet)' != ''" Link="%(Filename)%(Extension)" />
+    <PackageReference Include="System.Net.Http" Version="$(SystemNetHttpVersion)" PrivateAssets="all" ExcludeAssets="all" />
   </ItemGroup>
 
 </Project>