diff --git a/src/Microsoft.AspNet.Security.MicrosoftAccount/project.json b/src/Microsoft.AspNet.Security.MicrosoftAccount/project.json
index 530d34c575..e641098e59 100644
--- a/src/Microsoft.AspNet.Security.MicrosoftAccount/project.json
+++ b/src/Microsoft.AspNet.Security.MicrosoftAccount/project.json
@@ -8,7 +8,7 @@
         "aspnet50": {},
         "aspnetcore50": {
             "dependencies": {
-                "System.Dynamic.Runtime": "4.0.0-beta-*",
+                "System.Dynamic.Runtime": "4.0.10-beta-*",
                 "System.ObjectModel": "4.0.10-beta-*"
             }
         }