diff --git a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/Microsoft.AspNetCore.Cryptography.Internal.Test.csproj b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/Microsoft.AspNetCore.Cryptography.Internal.Test.csproj
index 05e13e991d..832db33230 100644
--- a/test/Microsoft.AspNetCore.Cryptography.Internal.Test/Microsoft.AspNetCore.Cryptography.Internal.Test.csproj
+++ b/test/Microsoft.AspNetCore.Cryptography.Internal.Test/Microsoft.AspNetCore.Cryptography.Internal.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">$(PackageTargetFallback);dnxcore50;portable-net451+win8</PackageTargetFallback>
   </PropertyGroup>
diff --git a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test.csproj b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test.csproj
index d43901eb99..041fc58a66 100644
--- a/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test.csproj
+++ b/test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test/Microsoft.AspNetCore.Cryptography.KeyDerivation.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
diff --git a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/Microsoft.AspNetCore.DataProtection.Abstractions.Test.csproj b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/Microsoft.AspNetCore.DataProtection.Abstractions.Test.csproj
index ccb6326b1d..6ecaf250d8 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/Microsoft.AspNetCore.DataProtection.Abstractions.Test.csproj
+++ b/test/Microsoft.AspNetCore.DataProtection.Abstractions.Test/Microsoft.AspNetCore.DataProtection.Abstractions.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test.csproj b/test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test.csproj
index cafc221a82..ddb87f8ec0 100644
--- a/test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test.csproj
+++ b/test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test/Microsoft.AspNetCore.DataProtection.AzureStorage.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <PackageTargetFallback Condition=" '$(TargetFramework)' == 'netcoreapp1.1' ">$(PackageTargetFallback);dnxcore50;portable-net451+win8</PackageTargetFallback>
   </PropertyGroup>
diff --git a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/Microsoft.AspNetCore.DataProtection.Extensions.Test.csproj b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/Microsoft.AspNetCore.DataProtection.Extensions.Test.csproj
index efd2111af2..5c62910ca1 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/Microsoft.AspNetCore.DataProtection.Extensions.Test.csproj
+++ b/test/Microsoft.AspNetCore.DataProtection.Extensions.Test/Microsoft.AspNetCore.DataProtection.Extensions.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.DataProtection.Redis.Test/Microsoft.AspNetCore.DataProtection.Redis.Test.csproj b/test/Microsoft.AspNetCore.DataProtection.Redis.Test/Microsoft.AspNetCore.DataProtection.Redis.Test.csproj
index e3e2a90f65..e1c3d0cb86 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Redis.Test/Microsoft.AspNetCore.DataProtection.Redis.Test.csproj
+++ b/test/Microsoft.AspNetCore.DataProtection.Redis.Test/Microsoft.AspNetCore.DataProtection.Redis.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs b/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
index f9b4ddde0e..8d1accf55b 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/AnonymousImpersonation.cs
@@ -1,7 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-#if NET451
+#if NET452
 using System;
 using System.Runtime.ConstrainedExecution;
 using System.Runtime.InteropServices;
diff --git a/test/Microsoft.AspNetCore.DataProtection.Test/Microsoft.AspNetCore.DataProtection.Test.csproj b/test/Microsoft.AspNetCore.DataProtection.Test/Microsoft.AspNetCore.DataProtection.Test.csproj
index 3f92395e48..a8bcd60fbc 100644
--- a/test/Microsoft.AspNetCore.DataProtection.Test/Microsoft.AspNetCore.DataProtection.Test.csproj
+++ b/test/Microsoft.AspNetCore.DataProtection.Test/Microsoft.AspNetCore.DataProtection.Test.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp1.1;net451</TargetFrameworks>
+    <TargetFrameworks>netcoreapp1.1;net452</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp1.1</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
@@ -21,7 +22,7 @@
     <PackageReference Include="xunit" Version="2.2.0-*" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)'=='net451'">
+  <ItemGroup Condition="'$(TargetFramework)'=='net452'">
     <Reference Include="System.Security" />
   </ItemGroup>