diff --git a/_data/chains/eip155-10.json b/_data/chains/eip155-10.json
index 028b7aa1..99350723 100644
--- a/_data/chains/eip155-10.json
+++ b/_data/chains/eip155-10.json
@@ -2,7 +2,7 @@
   "name": "Optimistic Ethereum",
   "chain": "ETH",
   "network": "mainnet",
-  "rpc": [],
+  "rpc": ["https://mainnet.optimism.io/"],
   "faucets": [],
   "nativeCurrency": {
     "name": "Ether",