diff --git a/samples/Mvc.Server/project.json b/samples/Mvc.Server/project.json
index 19abfd45..588cd570 100644
--- a/samples/Mvc.Server/project.json
+++ b/samples/Mvc.Server/project.json
@@ -20,6 +20,7 @@
     "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-*",
     "Microsoft.Extensions.Configuration.CommandLine": "1.0.0-rc2-*",
     "Microsoft.Extensions.Configuration.EnvironmentVariables": "1.0.0-rc2-*",
+    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-*",
     "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-*",
     "Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-*",
     "OpenIddict": "1.0.0-*"