diff --git a/_data/chains/eip155-421611.json b/_data/chains/eip155-421611.json
index 70a93c42..77b2d9c0 100644
--- a/_data/chains/eip155-421611.json
+++ b/_data/chains/eip155-421611.json
@@ -22,5 +22,10 @@
       "url": "https://rinkeby-explorer.arbitrum.io",
       "standard": "EIP3091"
     }
-  ]
+  ],
+  "parent": {
+      "type" : "L2",
+      "chain": "eip155-4",
+      "bridges": [ {"url":"https://bridge.arbitrum.io"} ]
+  }
 }