diff --git a/src/Microsoft.AspNet.Mvc.Razor/project.json b/src/Microsoft.AspNet.Mvc.Razor/project.json
index d56f3ea6c6..431429660c 100644
--- a/src/Microsoft.AspNet.Mvc.Razor/project.json
+++ b/src/Microsoft.AspNet.Mvc.Razor/project.json
@@ -13,7 +13,7 @@
     "Microsoft.CodeAnalysis.Common" : "0.7-beta-*",
     "Microsoft.CodeAnalysis.CSharp" : "0.7-beta-*",
     "System.Reflection.Metadata.Ecma335": "0.7-beta-*",
-    "Microsoft.Bcl.Immutable": "1.1.18-beta"
+    "Microsoft.Bcl.Immutable": "1.1.18-beta-*"
   },
   "configurations": {
     "net45": {