diff --git a/src/Microsoft.AspNet.Hosting.Abstractions/project.json b/src/Microsoft.AspNet.Hosting.Abstractions/project.json
index bfb6a183f1..adca748265 100644
--- a/src/Microsoft.AspNet.Hosting.Abstractions/project.json
+++ b/src/Microsoft.AspNet.Hosting.Abstractions/project.json
@@ -4,7 +4,7 @@
     "dependencies": {
         "Microsoft.AspNet.Http.Abstractions": "1.0.0-*",
         "Microsoft.AspNet.FileProviders.Abstractions": "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.Hosting/project.json b/src/Microsoft.AspNet.Hosting/project.json
index 2450ba27c8..a84b1bc227 100644
--- a/src/Microsoft.AspNet.Hosting/project.json
+++ b/src/Microsoft.AspNet.Hosting/project.json
@@ -12,7 +12,7 @@
         "Microsoft.Framework.DependencyInjection": "1.0.0-*",
         "Microsoft.Framework.Logging": "1.0.0-*",
         "Microsoft.Framework.Runtime.Abstractions": "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": {