diff --git a/src/Microsoft.AspNet.Mvc.Core/project.json b/src/Microsoft.AspNet.Mvc.Core/project.json
index 5c9905671d..4d4e6e517f 100644
--- a/src/Microsoft.AspNet.Mvc.Core/project.json
+++ b/src/Microsoft.AspNet.Mvc.Core/project.json
@@ -30,7 +30,7 @@
         "System.Runtime.Extensions": "4.0.10.0",
         "System.Runtime.Hosting": "3.9.0.0",
         "System.Runtime.InteropServices": "4.0.20.0",
-        "System.Text.Encoding": "4.0.10.0",
+        "System.Text.Encoding": "4.0.20.0",
         "System.Threading.Tasks": "4.0.0.0"
       }
     }