diff --git a/samples/MvcSample.Web/project.json b/samples/MvcSample.Web/project.json
index b5f9ee8245..819204ebcc 100644
--- a/samples/MvcSample.Web/project.json
+++ b/samples/MvcSample.Web/project.json
@@ -16,8 +16,8 @@
         "Microsoft.AspNet.Server.WebListener": "1.0.0-*",
         "Microsoft.AspNet.Session": "1.0.0-*",
         "Microsoft.AspNet.StaticFiles": "1.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "dnx451": {
diff --git a/samples/TagHelperSample.Web/project.json b/samples/TagHelperSample.Web/project.json
index c313efd733..588190bbcd 100644
--- a/samples/TagHelperSample.Web/project.json
+++ b/samples/TagHelperSample.Web/project.json
@@ -16,8 +16,8 @@
         "Microsoft.AspNet.Server.WebListener": "1.0.0-*",
         "Microsoft.AspNet.StaticFiles": "1.0.0-*",
         "Microsoft.AspNet.Tooling.Razor": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": { },
diff --git a/src/Microsoft.AspNet.JsonPatch/project.json b/src/Microsoft.AspNet.JsonPatch/project.json
index b90d6372dc..bda4d2c9dd 100644
--- a/src/Microsoft.AspNet.JsonPatch/project.json
+++ b/src/Microsoft.AspNet.JsonPatch/project.json
@@ -3,8 +3,8 @@
     "dependencies": {
         "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
         "Newtonsoft.Json": "6.0.6"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Mvc.Abstractions/project.json b/src/Microsoft.AspNet.Mvc.Abstractions/project.json
index 52f22b3dc8..d65d1c7e43 100644
--- a/src/Microsoft.AspNet.Mvc.Abstractions/project.json
+++ b/src/Microsoft.AspNet.Mvc.Abstractions/project.json
@@ -7,9 +7,9 @@
   "dependencies": {
     "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
     "Microsoft.AspNet.Routing": "1.0.0-*",
-    "Microsoft.Framework.CopyOnWriteDictionary.Internal": { "version": "1.0.0-*", "type": "build" },
-    "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
-    "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" }
+    "Microsoft.Framework.CopyOnWriteDictionary.Sources": { "version": "1.0.0-*", "type": "build" },
+    "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
+    "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" }
   },
   "frameworks": {
     "dnx451": {},
diff --git a/src/Microsoft.AspNet.Mvc.ApiExplorer/project.json b/src/Microsoft.AspNet.Mvc.ApiExplorer/project.json
index 829dd8a38d..4834d6be77 100644
--- a/src/Microsoft.AspNet.Mvc.ApiExplorer/project.json
+++ b/src/Microsoft.AspNet.Mvc.ApiExplorer/project.json
@@ -7,8 +7,8 @@
     "dependencies": {
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Mvc.Core": "6.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": { },
diff --git a/src/Microsoft.AspNet.Mvc.Core/project.json b/src/Microsoft.AspNet.Mvc.Core/project.json
index 61bacd172b..ad8013fec5 100644
--- a/src/Microsoft.AspNet.Mvc.Core/project.json
+++ b/src/Microsoft.AspNet.Mvc.Core/project.json
@@ -16,12 +16,12 @@
         "Microsoft.AspNet.Mvc.Abstractions": "6.0.0-*",
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Routing": "1.0.0-*",
-        "Microsoft.Framework.BufferEntryCollection.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.CopyOnWriteDictionary.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.BufferEntryCollection.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.CopyOnWriteDictionary.Sources": { "version": "1.0.0-*", "type": "build" },
         "Microsoft.Framework.Logging.Abstractions": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyActivator.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyActivator.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
         "Microsoft.Framework.Runtime.Abstractions": "1.0.0-*",
         "Microsoft.Framework.WebEncoders": "1.0.0-*",
         "Microsoft.AspNet.JsonPatch": "1.0.0-*"
diff --git a/src/Microsoft.AspNet.Mvc.Razor.Host/project.json b/src/Microsoft.AspNet.Mvc.Razor.Host/project.json
index 61af24ac27..b380c407bf 100644
--- a/src/Microsoft.AspNet.Mvc.Razor.Host/project.json
+++ b/src/Microsoft.AspNet.Mvc.Razor.Host/project.json
@@ -9,8 +9,8 @@
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Razor.Runtime": "4.0.0-*",
         "Microsoft.Framework.Caching.Memory": "1.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "net45": {},
diff --git a/src/Microsoft.AspNet.Mvc.Razor/project.json b/src/Microsoft.AspNet.Mvc.Razor/project.json
index 8f2677a6a2..be042ccf7e 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/project.json
+++ b/src/Microsoft.AspNet.Mvc.Razor/project.json
@@ -10,9 +10,9 @@
         "Microsoft.AspNet.Mvc.Core": "6.0.0-*",
         "Microsoft.AspNet.Mvc.Razor.Host": "6.0.0-*",
         "Microsoft.AspNet.PageExecutionInstrumentation.Interfaces": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyActivator.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyActivator.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
         "Microsoft.Framework.Runtime.Roslyn.Common": "1.0.0-*",
         "Microsoft.Framework.Runtime.Roslyn.Abstractions": "1.0.0-*"
     },
diff --git a/src/Microsoft.AspNet.Mvc.TagHelpers/project.json b/src/Microsoft.AspNet.Mvc.TagHelpers/project.json
index 9c56bf8491..021555d3f5 100644
--- a/src/Microsoft.AspNet.Mvc.TagHelpers/project.json
+++ b/src/Microsoft.AspNet.Mvc.TagHelpers/project.json
@@ -10,8 +10,8 @@
         "Microsoft.Framework.Caching.Memory": "1.0.0-*",
         "Microsoft.Framework.FileSystemGlobbing": "1.0.0-*",
         "Microsoft.Framework.Logging.Abstractions": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
         "System.Security.Cryptography.Hashing.Algorithms": "4.0.0-beta-*"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Mvc.WebApiCompatShim/project.json b/src/Microsoft.AspNet.Mvc.WebApiCompatShim/project.json
index e63607438e..8ab7774925 100644
--- a/src/Microsoft.AspNet.Mvc.WebApiCompatShim/project.json
+++ b/src/Microsoft.AspNet.Mvc.WebApiCompatShim/project.json
@@ -8,8 +8,8 @@
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Mvc.Core": "6.0.0-*",
         "Microsoft.AspNet.WebApi.Client": "5.2.2",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": {
diff --git a/src/Microsoft.AspNet.Mvc.Xml/project.json b/src/Microsoft.AspNet.Mvc.Xml/project.json
index b0dd41983c..d83632c700 100644
--- a/src/Microsoft.AspNet.Mvc.Xml/project.json
+++ b/src/Microsoft.AspNet.Mvc.Xml/project.json
@@ -7,8 +7,8 @@
     "dependencies": {
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Mvc.Core": "6.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": {
diff --git a/src/Microsoft.AspNet.Mvc/project.json b/src/Microsoft.AspNet.Mvc/project.json
index f960a8aa1a..a84b3257d3 100644
--- a/src/Microsoft.AspNet.Mvc/project.json
+++ b/src/Microsoft.AspNet.Mvc/project.json
@@ -12,8 +12,8 @@
         "Microsoft.AspNet.Mvc.Razor": "6.0.0-*",
         "Microsoft.Framework.Caching.Memory": "1.0.0-*",
         "Microsoft.Framework.DependencyInjection": "1.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": {},
diff --git a/test/Microsoft.AspNet.Mvc.Common.Test/project.json b/test/Microsoft.AspNet.Mvc.Common.Test/project.json
index 729aa96a73..df46d2720e 100644
--- a/test/Microsoft.AspNet.Mvc.Common.Test/project.json
+++ b/test/Microsoft.AspNet.Mvc.Common.Test/project.json
@@ -5,9 +5,9 @@
     "dependencies": {
         "Microsoft.AspNet.Mvc.Common": { "version": "6.0.0-*", "type": "build" },
         "Microsoft.AspNet.Testing": "1.0.0-*",
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.CopyOnWriteDictionary.Internal": { "version": "1.0.0-*", "type": "build" },
-        "Microsoft.Framework.NotNullAttribute.Internal": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.CopyOnWriteDictionary.Sources": { "version": "1.0.0-*", "type": "build" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "version": "1.0.0-*", "type": "build" },
         "xunit.runner.aspnet": "2.0.0-aspnet-*",
         "Microsoft.Framework.DependencyInjection": "1.0.0-*"
     },
diff --git a/test/WebSites/PrecompilationWebSite/project.json b/test/WebSites/PrecompilationWebSite/project.json
index 4cf047ed99..e99bb328ef 100644
--- a/test/WebSites/PrecompilationWebSite/project.json
+++ b/test/WebSites/PrecompilationWebSite/project.json
@@ -11,8 +11,8 @@
         "Microsoft.AspNet.Server.IIS": "1.0.0-*",
         "Microsoft.AspNet.Server.WebListener": "1.0.0-*",
         "Microsoft.AspNet.StaticFiles": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
-        "Microsoft.Framework.PropertyHelper.Internal": { "version": "1.0.0-*", "type": "build" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.PropertyHelper.Sources": { "version": "1.0.0-*", "type": "build" }
     },
     "frameworks": {
         "dnx451": {