diff --git a/test/Microsoft.AspNet.Server.KestrelTests/project.json b/test/Microsoft.AspNet.Server.KestrelTests/project.json
index 8d1e6a4443..ea63991f94 100644
--- a/test/Microsoft.AspNet.Server.KestrelTests/project.json
+++ b/test/Microsoft.AspNet.Server.KestrelTests/project.json
@@ -8,7 +8,7 @@
         "dnx451": { },
         "dnxcore50": {
             "dependencies": {
-                "System.Net.Sockets": "4.0.0-beta-*",
+                "System.Net.Sockets": "4.0.10-beta-*",
                 "System.Runtime.Handles": "4.0.0-beta-*",
                 "System.IO": "4.0.10-beta-*"
             }