diff --git a/src/Microsoft.AspNet.Diagnostics.Elm/project.json b/src/Microsoft.AspNet.Diagnostics.Elm/project.json
index ecbc925e74..4d832c4969 100644
--- a/src/Microsoft.AspNet.Diagnostics.Elm/project.json
+++ b/src/Microsoft.AspNet.Diagnostics.Elm/project.json
@@ -10,7 +10,7 @@
         "aspnet50": { },
         "aspnetcore50": {
             "dependencies": {
-                "System.Threading.ExecutionContext": "4.0.0-beta-*"
+                "System.Threading": "4.0.10-beta-*"
             }
         }
     }
diff --git a/src/Microsoft.AspNet.Diagnostics.Entity/project.json b/src/Microsoft.AspNet.Diagnostics.Entity/project.json
index 9d4cb8e028..4ffb158faa 100644
--- a/src/Microsoft.AspNet.Diagnostics.Entity/project.json
+++ b/src/Microsoft.AspNet.Diagnostics.Entity/project.json
@@ -17,7 +17,7 @@
         },
         "aspnetcore50": {
             "dependencies": {
-                "System.Threading.ExecutionContext": "4.0.0-beta-*"
+                "System.Threading": "4.0.10-beta-*"
             }
         }
     }