diff --git a/src/Microsoft.AspNetCore.Authentication.OAuth/project.json b/src/Microsoft.AspNetCore.Authentication.OAuth/project.json
index 613cadae3f..af3f17a99b 100644
--- a/src/Microsoft.AspNetCore.Authentication.OAuth/project.json
+++ b/src/Microsoft.AspNetCore.Authentication.OAuth/project.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "Microsoft.AspNetCore.Authentication": "1.0.0-*",
-    "Newtonsoft.Json": "8.0.3"
+    "Newtonsoft.Json": "9.0.1-beta1"
   },
   "frameworks": {
     "net451": {},
diff --git a/src/Microsoft.AspNetCore.Authentication.Twitter/project.json b/src/Microsoft.AspNetCore.Authentication.Twitter/project.json
index 63464eab96..1789475252 100644
--- a/src/Microsoft.AspNetCore.Authentication.Twitter/project.json
+++ b/src/Microsoft.AspNetCore.Authentication.Twitter/project.json
@@ -22,7 +22,7 @@
   },
   "dependencies": {
     "Microsoft.AspNetCore.Authentication": "1.0.0-*",
-    "Newtonsoft.Json": "8.0.3"
+    "Newtonsoft.Json": "9.0.1-beta1"
   },
   "frameworks": {
     "net451": {},