diff --git a/params/bootnodes.go b/params/bootnodes.go
index bae567d06426..04f0214e12e3 100644
--- a/params/bootnodes.go
+++ b/params/bootnodes.go
@@ -20,7 +20,9 @@ import "github.com/ethereum/go-ethereum/common"
 
 // MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on
 // the main Ethereum network.
-var MainnetBootnodes []string
+var MainnetBootnodes = []string{
+	"enode://f9a924a477bba99d30e23d9defdbc8f1505a7b63c41627162b486bf0cde6ba16fc54c2fa5b7d523a66b0710be16d1a73d141f5e6606adeaa71a22afb6e3c1280@13.230.226.55:30303", //kcc-mainnet-node-boot-01
+}
 
 // TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the test network.
 var TestnetBootnodes = []string{
diff --git a/params/config.go b/params/config.go
index 26fce5604bc2..1f111752e69e 100644
--- a/params/config.go
+++ b/params/config.go
@@ -27,7 +27,7 @@ import (
 
 // Genesis hashes to enforce below configs on.
 var (
-	MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3")
+	MainnetGenesisHash = common.HexToHash("0xbe12e995c4af6bf98c223a2168a5d6d5bd5c62414891a8a2aae037b8fd431b74")
 	TestnetGenesisHash = common.HexToHash("0x3e98a8f1704be5accc0ce9abf3e852e24ec030a9dda6c1beaf72c600f85cd417")
 )