diff --git a/Directory.Packages.props b/Directory.Packages.props
index f285884ad53a..604556bfd876 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -95,7 +95,6 @@
     <PackageVersion Include="StyleCop.Analyzers" Version="$(StyleCopAnalyzersPackageVersion)" />
     <PackageVersion Include="System.CodeDom" Version="$(SystemCodeDomPackageVersion)" />
     <PackageVersion Include="System.CommandLine" Version="$(SystemCommandLineVersion)" />
-    <PackageVersion Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
     <PackageVersion Include="System.Composition.AttributedModel" Version="$(SystemCompositionAttributedModelPackageVersion)" />
     <PackageVersion Include="System.Composition.Convention" Version="$(SystemCompositionConventionPackageVersion)" />
     <PackageVersion Include="System.Composition.Hosting" Version="$(SystemCompositionHostingPackageVersion)" />
@@ -104,14 +103,11 @@
     <PackageVersion Include="System.Configuration.ConfigurationManager" Version="$(SystemConfigurationConfigurationManagerPackageVersion)" />
     <PackageVersion Include="System.Formats.Asn1" Version="$(SystemFormatsAsn1Version)" />
     <PackageVersion Include="System.IO.Hashing" Version="$(SystemIOHashingPackageVersion)" />
-    <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <!-- System.Reflection.Metadata and System.Collections.Immutable cannot be pinned here because of hard dependencies within Roslyn on specific versions that have to work both here and in VS -->
     <PackageVersion Include="System.Reflection.MetadataLoadContext" Version="$(SystemReflectionMetadataLoadContextVersion)" />
     <PackageVersion Include="System.Resources.Extensions" Version="$(SystemResourcesExtensionsPackageVersion)" />
-    <PackageVersion Include="System.Runtime.Serialization.Primitives" Version="4.3.0" />
     <PackageVersion Include="System.Security.Cryptography.Pkcs" Version="$(SystemSecurityCryptographyPkcsPackageVersion)" />
     <PackageVersion Include="System.Security.Cryptography.ProtectedData" Version="$(SystemSecurityCryptographyProtectedDataPackageVersion)" />
-    <PackageVersion Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
     <PackageVersion Include="System.Security.Cryptography.Xml" Version="$(SystemSecurityCryptographyXmlPackageVersion)" />
     <PackageVersion Include="System.Security.Permissions" Version="$(SystemSecurityPermissionsPackageVersion)" />
     <PackageVersion Include="System.ServiceProcess.ServiceController" Version="$(SystemServiceProcessServiceControllerVersion)" />
diff --git a/test/Msbuild.Tests.Utilities/Msbuild.Tests.Utilities.csproj b/test/Msbuild.Tests.Utilities/Msbuild.Tests.Utilities.csproj
index 8ec880dcddaf..1ac52334565b 100644
--- a/test/Msbuild.Tests.Utilities/Msbuild.Tests.Utilities.csproj
+++ b/test/Msbuild.Tests.Utilities/Msbuild.Tests.Utilities.csproj
@@ -1,4 +1,5 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
+
   <PropertyGroup>
     <TargetFramework>$(ToolsetTargetFramework)</TargetFramework>
     <AssemblyName>Msbuild.Tests.Utilities</AssemblyName>
@@ -15,11 +16,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Runtime.Serialization.Primitives" />
     <PackageReference Include="FluentAssertions" />
     <PackageReference Include="xunit" />
     <PackageReference Include="Microsoft.Build" />
-    <PackageReference Include="System.Net.Http" />
   </ItemGroup>
 
 </Project>
diff --git a/test/dotnet.Tests/dotnet.Tests.csproj b/test/dotnet.Tests/dotnet.Tests.csproj
index 58062b2df585..1a306d59176c 100644
--- a/test/dotnet.Tests/dotnet.Tests.csproj
+++ b/test/dotnet.Tests/dotnet.Tests.csproj
@@ -117,7 +117,6 @@
 
   <ItemGroup>
     <PackageReference Include="Moq" />
-    <PackageReference Include="System.ComponentModel.TypeConverter" />
     <PackageReference Include="Microsoft.Build.Tasks.Core" />
     <PackageReference Include="Microsoft.TemplateEngine.Mocks" />
     <PackageReference Include="Microsoft.TemplateEngine.TestHelper" />