diff --git a/build/common.props b/build/common.props
index 363c7862da..7c783e99d3 100644
--- a/build/common.props
+++ b/build/common.props
@@ -1,4 +1,5 @@
 <Project>
+  <Import Project="dependencies.props" />
   <Import Project="..\version.props" />
 
   <PropertyGroup>
@@ -8,12 +9,10 @@
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)Key.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
     <PublicSign Condition="'$(OS)' != 'Windows_NT'">true</PublicSign>
-    <NetCoreAppImplicitPackageVersion>1.2.0-*</NetCoreAppImplicitPackageVersion>
-    <NetStandardImplicitPackageVersion>1.6.2-*</NetStandardImplicitPackageVersion>
     <VersionSuffix Condition="'$(VersionSuffix)'!='' AND '$(BuildNumber)' != ''">$(VersionSuffix)-$(BuildNumber)</VersionSuffix>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Internal.AspNetCore.Sdk" Version="1.0.1-*" PrivateAssets="All" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/build/dependencies.props b/build/dependencies.props
new file mode 100644
index 0000000000..e704edaec0
--- /dev/null
+++ b/build/dependencies.props
@@ -0,0 +1,6 @@
+<Project>
+  <PropertyGroup>
+    <NetStandardImplicitPackageVersion>1.6.1</NetStandardImplicitPackageVersion>
+    <CoreFxVersion>4.3.0</CoreFxVersion>
+  </PropertyGroup>
+</Project>
diff --git a/test/Microsoft.AspNetCore.Antiforgery.Test/Microsoft.AspNetCore.Antiforgery.Test.csproj b/test/Microsoft.AspNetCore.Antiforgery.Test/Microsoft.AspNetCore.Antiforgery.Test.csproj
index 17ce5bf2cf..c9db70010b 100644
--- a/test/Microsoft.AspNetCore.Antiforgery.Test/Microsoft.AspNetCore.Antiforgery.Test.csproj
+++ b/test/Microsoft.AspNetCore.Antiforgery.Test/Microsoft.AspNetCore.Antiforgery.Test.csproj
@@ -21,8 +21,4 @@
     <PackageReference Include="xunit" Version="2.2.0-*" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">
-    <PackageReference Include="System.Diagnostics.TraceSource" Version="4.4.0-*" />
-  </ItemGroup>
-
 </Project>