diff --git a/package-overrides/npm/typescript@1.9.0-dev.json b/package-overrides/npm/typescript@1.9.0-dev.json
index 3005d44..e6792da 100644
--- a/package-overrides/npm/typescript@1.9.0-dev.json
+++ b/package-overrides/npm/typescript@1.9.0-dev.json
@@ -4,9 +4,8 @@
     "buffer": "@empty",
     "child_process": "@empty",
     "fs": "@empty",
-    "os": "@empty",
     "path": "@empty",
     "process": "@empty",
     "readline": "@empty"
   }
-}
\ No newline at end of file
+}