diff --git a/src/Microsoft.AspNet.Razor/project.json b/src/Microsoft.AspNet.Razor/project.json
index 6cff505dcb..ae6927878c 100644
--- a/src/Microsoft.AspNet.Razor/project.json
+++ b/src/Microsoft.AspNet.Razor/project.json
@@ -1,4 +1,4 @@
-{
+{
     "version": "4.0.0-*",
     "dependencies": {
         "System.Collections": "4.0.10.0",
@@ -6,7 +6,7 @@
         "System.Diagnostics.Tools": "4.0.0.0",
         "System.Globalization": "4.0.10.0",
         "System.IO": "4.0.0.0",
-        "System.IO.FileSystem": "4.0.10.0",
+        "System.IO.FileSystem": "4.0.0.0",
         "System.Linq": "4.0.0.0",
         "System.Reflection": "4.0.10.0",
         "System.Resources.ResourceManager": "4.0.0.0",