diff --git a/src/Microsoft.AspNet.Mvc.ModelBinding/project.json b/src/Microsoft.AspNet.Mvc.ModelBinding/project.json
index 5dce944a29..7a03e27eff 100644
--- a/src/Microsoft.AspNet.Mvc.ModelBinding/project.json
+++ b/src/Microsoft.AspNet.Mvc.ModelBinding/project.json
@@ -33,6 +33,7 @@
         "System.Resources.ResourceManager": "4.0.0.0",
         "System.Runtime": "4.0.20.0",
         "System.Runtime.Extensions": "4.0.10.0",
+        "System.Threading": "4.0.0.0",
         "System.Threading.Tasks": "4.0.0.0",
         "System.Runtime.Serialization.Primitives": "4.0.0.0",
         "Microsoft.ComponentModel.DataAnnotations": "0.1-alpha-*"