diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/project.json b/src/Microsoft.AspNet.WebSockets.Protocol/project.json
index 5fdfe5b60f..c0a6a41151 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/project.json
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/project.json
@@ -10,7 +10,8 @@
             "System.Runtime": "4.0.20.0",
             "System.Runtime.InteropServices": "4.0.20.0",
             "System.Runtime.Extensions": "4.0.10.0",
-            "System.Security.Cryptography.HashAlgorithms.SHA1": "4.0.0.0",
+            "System.Security.Cryptography": "4.0.0.0",
+            "System.Security.Cryptography.Hashing.Algorithms": "4.0.0.0",
             "System.Threading": "4.0.0.0",
             "System.Threading.Tasks": "4.0.10.0",
             "System.Threading.Timer": "4.0.0.0"