diff --git a/test/Microsoft.AspNetCore.Html.Abstractions.Test/project.json b/test/Microsoft.AspNetCore.Html.Abstractions.Test/project.json
index f05677f95c..6a1156028f 100644
--- a/test/Microsoft.AspNetCore.Html.Abstractions.Test/project.json
+++ b/test/Microsoft.AspNetCore.Html.Abstractions.Test/project.json
@@ -4,6 +4,7 @@
     "keyFile": "../../tools/Key.snk"
   },
   "dependencies": {
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "Microsoft.AspNetCore.Html.Abstractions": "1.0.0-*",
     "Microsoft.AspNetCore.Testing": "1.0.0-*",
     "Microsoft.Extensions.WebEncoders": "1.0.0-*",
diff --git a/test/Microsoft.Extensions.WebEncoders.Tests/project.json b/test/Microsoft.Extensions.WebEncoders.Tests/project.json
index 63433fa2c6..69cdc308b0 100644
--- a/test/Microsoft.Extensions.WebEncoders.Tests/project.json
+++ b/test/Microsoft.Extensions.WebEncoders.Tests/project.json
@@ -1,5 +1,6 @@
 {
   "dependencies": {
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "Microsoft.Extensions.DependencyInjection": "1.0.0-*",
     "Microsoft.Extensions.WebEncoders": "1.0.0-*",
     "xunit": "2.1.0"