diff --git a/src/Microsoft.AspNet.Cryptography.KeyDerivation/project.json b/src/Microsoft.AspNet.Cryptography.KeyDerivation/project.json
index 438713f062..bb3a47ccc3 100644
--- a/src/Microsoft.AspNet.Cryptography.KeyDerivation/project.json
+++ b/src/Microsoft.AspNet.Cryptography.KeyDerivation/project.json
@@ -3,7 +3,7 @@
     "description": "ASP.NET 5 utilities for key derivation.",
     "dependencies": {
         "Microsoft.AspNet.Cryptography.Internal": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "net451": { },
diff --git a/src/Microsoft.AspNet.DataProtection.Abstractions/project.json b/src/Microsoft.AspNet.DataProtection.Abstractions/project.json
index b9a22befcc..4bcfff29a7 100644
--- a/src/Microsoft.AspNet.DataProtection.Abstractions/project.json
+++ b/src/Microsoft.AspNet.DataProtection.Abstractions/project.json
@@ -2,7 +2,7 @@
     "version": "1.0.0-*",
     "description": "Contains the core IDataProtector and IDataProtectionProvider abstractions for ASP.NET 5 Data Protection.",
     "dependencies": {
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" },
         "Microsoft.AspNet.DataProtection.Shared": { "type": "build", "version": "" }
     },
     "frameworks": {
diff --git a/src/Microsoft.AspNet.DataProtection.Extensions/project.json b/src/Microsoft.AspNet.DataProtection.Extensions/project.json
index 2fd42f5a21..324423da09 100644
--- a/src/Microsoft.AspNet.DataProtection.Extensions/project.json
+++ b/src/Microsoft.AspNet.DataProtection.Extensions/project.json
@@ -5,7 +5,7 @@
         "Microsoft.AspNet.DataProtection": "1.0.0-*",
         "Microsoft.AspNet.DataProtection.Shared": { "type": "build", "version": "" },
         "Microsoft.Framework.DependencyInjection": "1.0.0-*",
-        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" }
+        "Microsoft.Framework.NotNullAttribute.Sources": { "type": "build", "version": "1.0.0-*" }
     },
     "frameworks": {
         "net451": { },
diff --git a/src/Microsoft.AspNet.DataProtection/project.json b/src/Microsoft.AspNet.DataProtection/project.json
index 7906533836..c160fd642f 100644
--- a/src/Microsoft.AspNet.DataProtection/project.json
+++ b/src/Microsoft.AspNet.DataProtection/project.json
@@ -7,7 +7,7 @@
         "Microsoft.AspNet.DataProtection.Shared": { "type": "build", "version": "" },
         "Microsoft.Framework.DependencyInjection.Abstractions": "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": {