diff --git a/core/genesis.go b/core/genesis.go
index a6835fa71f..cb4f8d1ec9 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -312,10 +312,10 @@ func GenesisBlockForTesting(db ethdb.Database, addr common.Address, balance *big
 func DefaultGenesisBlock() *Genesis {
 	return &Genesis{
 		Config:     params.MainnetChainConfig,
-		Nonce:      64,
+		Nonce:      69,
 		ExtraData:  hexutil.MustDecode("0x0000000000000000000000000000000000000000000000000000000000000000"),
 		GasLimit:   3141592,
-		Difficulty: big.NewInt(1073741824),
+		Difficulty: big.NewInt(131072),
 		Alloc:      decodePrealloc(mainnetAllocData),
 	}
 }
diff --git a/params/config.go b/params/config.go
index 691210648f..b7471dad5d 100644
--- a/params/config.go
+++ b/params/config.go
@@ -24,19 +24,19 @@ import (
 )
 
 var (
-	MainnetGenesisHash = common.HexToHash("0x42b6a7d113fe1f4acc35da7d8f542d5d19794047433726451c25925ef2783dcd") // Mainnet genesis hash to enforce below configs on
+	MainnetGenesisHash = common.HexToHash("0x13e772698cf10086381606d0b3afe952b60f1b3aa93eb4947028794b32b804c5") // Mainnet genesis hash to enforce below configs on
 	TestnetGenesisHash = common.HexToHash("0x42b6a7d113fe1f4acc35da7d8f542d5d19794047433726451c25925ef2783dcd") // Testnet genesis hash to enforce below configs on
 )
 
 var (
 	// MainnetChainConfig is the chain parameters to run a node on the main network.
 	MainnetChainConfig = &ChainConfig{
-		ChainId:             big.NewInt(87766),
+		ChainId:             big.NewInt(363341173),
 		HomesteadBlock:      big.NewInt(0),
 		DAOForkBlock:        nil,
 		DAOForkSupport:      false,
 		EIP150Block:         big.NewInt(0),
-		EIP150Hash:          common.HexToHash("0x42b6a7d113fe1f4acc35da7d8f542d5d19794047433726451c25925ef2783dcd"),
+		EIP150Hash:          common.HexToHash("0x13e772698cf10086381606d0b3afe952b60f1b3aa93eb4947028794b32b804c5"),
 		EIP155Block:         big.NewInt(0),
 		EIP158Block:         big.NewInt(0),
 		ByzantiumBlock:      nil,