diff --git a/src/Microsoft.AspNet.Server.Kestrel/project.json b/src/Microsoft.AspNet.Server.Kestrel/project.json
index 2e0caab7c0..09c6c9851c 100644
--- a/src/Microsoft.AspNet.Server.Kestrel/project.json
+++ b/src/Microsoft.AspNet.Server.Kestrel/project.json
@@ -24,28 +24,7 @@
     "System.Threading.Tasks.Extensions": "4.0.0-*"
   },
   "frameworks": {
-    "dnx451": { },
     "net451": { },
-    "dnxcore50": {
-      "dependencies": {
-        "System.Collections": "4.0.11-*",
-        "System.Diagnostics.Debug": "4.0.11-*",
-        "System.Diagnostics.TraceSource": "4.0.0-*",
-        "System.Diagnostics.Tracing": "4.0.21-*",
-        "System.Globalization": "4.0.11-*",
-        "System.IO": "4.0.11-*",
-        "System.Linq": "4.0.1-*",
-        "System.Net.Primitives": "4.0.11-*",
-        "System.Runtime.Extensions": "4.0.11-*",
-        "System.Runtime.InteropServices": "4.0.21-*",
-        "System.Text.Encoding": "4.0.11-*",
-        "System.Threading": "4.0.11-*",
-        "System.Threading.Tasks": "4.0.11-*",
-        "System.Threading.Thread": "4.0.0-*",
-        "System.Threading.ThreadPool": "4.0.10-*",
-        "System.Threading.Timer": "4.0.1-*"
-      }
-    },
     "dotnet5.4": {
       "dependencies": {
         "System.Collections": "4.0.11-*",