diff --git a/package-overrides/github/ceolter/ag-grid@4.0.4.json b/package-overrides/github/ceolter/ag-grid@4.0.4.json
index 36ce556..921be13 100644
--- a/package-overrides/github/ceolter/ag-grid@4.0.4.json
+++ b/package-overrides/github/ceolter/ag-grid@4.0.4.json
@@ -6,5 +6,7 @@
     }
   },
   "registry": "jspm",
-  "dependencies": {}
+  "dependencies": {
+      "css": "*"
+  }
 }