diff --git a/_data/chains/eip155-156.json b/_data/chains/eip155-156.json
index c6943586..0e282d2d 100644
--- a/_data/chains/eip155-156.json
+++ b/_data/chains/eip155-156.json
@@ -1,7 +1,8 @@
 {
   "name": "OEBlock Testnet",
   "chain": "OEBt",
-  "rpc": ["https://testnet-rpc.oeblock.com/"],
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "rpc": ["https://testnet-rpc.oeblock.com"],
   "faucets": [],
   "nativeCurrency": {
     "name": "OEBlock",