diff --git a/test/Microsoft.AspNetCore.Cors.Test/project.json b/test/Microsoft.AspNetCore.Cors.Test/project.json
index b2feca8832..05f1dabd05 100644
--- a/test/Microsoft.AspNetCore.Cors.Test/project.json
+++ b/test/Microsoft.AspNetCore.Cors.Test/project.json
@@ -5,6 +5,7 @@
     "Microsoft.AspNetCore.Cors": "1.0.0-*",
     "Microsoft.AspNetCore.TestHost": "1.0.0-*",
     "Microsoft.Extensions.Logging.Testing": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "xunit": "2.1.0"
   },
   "testRunner": "xunit",
@@ -26,7 +27,8 @@
       "dependencies": {
         "moq.netcore": "4.4.0-beta8",
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
-      }
+      },
+      "imports": "portable-net451+win8"
     }
   }
 }
\ No newline at end of file
diff --git a/test/WebSites/CorsMiddlewareWebSite/project.json b/test/WebSites/CorsMiddlewareWebSite/project.json
index 5d9595957c..755cd4507c 100644
--- a/test/WebSites/CorsMiddlewareWebSite/project.json
+++ b/test/WebSites/CorsMiddlewareWebSite/project.json
@@ -8,7 +8,8 @@
   "dependencies": {
     "Microsoft.AspNetCore.Cors": "1.0.0-*",
     "Microsoft.AspNetCore.IISPlatformHandler": "1.0.0-*",
-    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*"
+    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "frameworks": {
     "dnx451": {},