diff --git a/src/Microsoft.Net.WebSockets/project.json b/src/Microsoft.Net.WebSockets/project.json
index 318b478a14..b36dc2a234 100644
--- a/src/Microsoft.Net.WebSockets/project.json
+++ b/src/Microsoft.Net.WebSockets/project.json
@@ -19,7 +19,7 @@
                 "System.Runtime.Extensions": "4.0.10-beta-*",
                 "System.Security.Cryptography.Hashing.Algorithms": "4.0.0-beta-*",
                 "System.Text.Encoding.Extensions": "4.0.10-beta-*",
-                "System.Threading": "4.0.0-beta-*",
+                "System.Threading": "4.0.10-beta-*",
                 "System.Threading.Overlapped": "4.0.0-beta-*",
                 "System.Threading.Tasks": "4.0.10-beta-*",
                 "System.Threading.Timer": "4.0.0-beta-*",