diff --git a/src/Microsoft.AspNet.Authentication.Cookies/project.json b/src/Microsoft.AspNet.Authentication.Cookies/project.json
index 7b42df350e..28127904db 100644
--- a/src/Microsoft.AspNet.Authentication.Cookies/project.json
+++ b/src/Microsoft.AspNet.Authentication.Cookies/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET middleware that enables an application to use cookie based authentication, similar to ASP.NET's forms authentication.",
     "dependencies": {
         "Microsoft.AspNet.Authentication": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.Framework.WebEncoders": "1.0.0-*",
         "Newtonsoft.Json": "6.0.6"
     },
diff --git a/src/Microsoft.AspNet.Authentication.Facebook/project.json b/src/Microsoft.AspNet.Authentication.Facebook/project.json
index a14ab52da3..332385ca73 100644
--- a/src/Microsoft.AspNet.Authentication.Facebook/project.json
+++ b/src/Microsoft.AspNet.Authentication.Facebook/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to support Facebook's OAuth 2.0 authentication workflow.",
     "dependencies": {
         "Microsoft.AspNet.Authentication.OAuth": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Newtonsoft.Json": "6.0.6"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Authentication.Google/project.json b/src/Microsoft.AspNet.Authentication.Google/project.json
index 72beb690aa..b7ffdd0bcf 100644
--- a/src/Microsoft.AspNet.Authentication.Google/project.json
+++ b/src/Microsoft.AspNet.Authentication.Google/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 contains middlewares to support Google's OpenId and OAuth 2.0 authentication workflows.",
     "dependencies": {
         "Microsoft.AspNet.Authentication.OAuth": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "dnx451": { },
diff --git a/src/Microsoft.AspNet.Authentication.MicrosoftAccount/project.json b/src/Microsoft.AspNet.Authentication.MicrosoftAccount/project.json
index 6bd7bb3759..41ef74556b 100644
--- a/src/Microsoft.AspNet.Authentication.MicrosoftAccount/project.json
+++ b/src/Microsoft.AspNet.Authentication.MicrosoftAccount/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to support the Microsoft Account authentication workflow.",
     "dependencies": {
         "Microsoft.AspNet.Authentication.OAuth": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "dnx451": { },
diff --git a/src/Microsoft.AspNet.Authentication.OAuth/project.json b/src/Microsoft.AspNet.Authentication.OAuth/project.json
index a3409abf81..ba2cc53dc0 100644
--- a/src/Microsoft.AspNet.Authentication.OAuth/project.json
+++ b/src/Microsoft.AspNet.Authentication.OAuth/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to support any standard OAuth 2.0 authentication workflow.",
     "dependencies": {
         "Microsoft.AspNet.Authentication": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Newtonsoft.Json": "6.0.6"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Authentication.OAuthBearer/project.json b/src/Microsoft.AspNet.Authentication.OAuthBearer/project.json
index 570eb83469..e81bd34992 100644
--- a/src/Microsoft.AspNet.Authentication.OAuthBearer/project.json
+++ b/src/Microsoft.AspNet.Authentication.OAuthBearer/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to receive a OAuth bearer token.",
     "dependencies": {
         "Microsoft.AspNet.Authentication": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.IdentityModel.Protocol.Extensions": "2.0.0-beta4-*"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Authentication.OpenIdConnect/project.json b/src/Microsoft.AspNet.Authentication.OpenIdConnect/project.json
index 5f8e6d67a5..b61834b53e 100644
--- a/src/Microsoft.AspNet.Authentication.OpenIdConnect/project.json
+++ b/src/Microsoft.AspNet.Authentication.OpenIdConnect/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to support OpenIdConnect authentication workflow.",
     "dependencies": {
         "Microsoft.AspNet.Authentication": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.IdentityModel.Protocol.Extensions": "2.0.0-beta4-*"
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.Authentication.Twitter/project.json b/src/Microsoft.AspNet.Authentication.Twitter/project.json
index a9d804bc2e..6b2ddf521d 100644
--- a/src/Microsoft.AspNet.Authentication.Twitter/project.json
+++ b/src/Microsoft.AspNet.Authentication.Twitter/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 middleware that enables an application to support Twitter's OAuth 2.0 authentication workflow.",
     "dependencies": {
         "Microsoft.AspNet.Authentication": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "dnx451": {
diff --git a/src/Microsoft.AspNet.Authentication/project.json b/src/Microsoft.AspNet.Authentication/project.json
index 6bda0f7daa..bdf51537ff 100644
--- a/src/Microsoft.AspNet.Authentication/project.json
+++ b/src/Microsoft.AspNet.Authentication/project.json
@@ -6,7 +6,7 @@
         "Microsoft.AspNet.Http": "1.0.0-*",
         "Microsoft.AspNet.Http.Extensions": "1.0.0-*",
         "Microsoft.Framework.Logging.Abstractions": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.Framework.OptionsModel": "1.0.0-*",
         "Microsoft.Framework.WebEncoders": "1.0.0-*"
     },
diff --git a/src/Microsoft.AspNet.Authorization/project.json b/src/Microsoft.AspNet.Authorization/project.json
index 71c918fc58..a0b9beb5d9 100644
--- a/src/Microsoft.AspNet.Authorization/project.json
+++ b/src/Microsoft.AspNet.Authorization/project.json
@@ -4,7 +4,7 @@
     "dependencies": {
         "Microsoft.AspNet.Http.Features": "1.0.0-*",
         "Microsoft.Framework.Logging.Abstractions": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.Framework.OptionsModel": "1.0.0-*"
     },
     "frameworks": {