diff --git a/core/genesis.go b/core/genesis.go
index e9e0abf968..7ebad65d4e 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -340,7 +340,7 @@ func DefaultColosseumGenesisBlock(consensusEngine string) *Genesis {
 	return &Genesis{
 		Config:     params.ProgpowColosseumChainConfig,
 		Nonce:      66,
-		ExtraData:  hexutil.MustDecode("0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fb"),
+		ExtraData:  hexutil.MustDecode("0x111be8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fb"),
 		GasLimit:   5000000,
 		Difficulty: big.NewInt(300000000),
 	}
diff --git a/params/config.go b/params/config.go
index d1e9b1a645..248de8ae01 100644
--- a/params/config.go
+++ b/params/config.go
@@ -26,7 +26,7 @@ import (
 // Genesis hashes to enforce below configs on.
 var (
 	// Progpow GenesisHashes
-	ProgpowColosseumGenesisHash  = common.HexToHash("0x4e21d4b21862f89a4f041a7c181b28c51258b5a5b948d8e84686f4bc6603ddd8")
+	ProgpowColosseumGenesisHash  = common.HexToHash("0x4604997bd41f46c5ba9d5390544da46e24aced31dc1151dd06c264adedd89e57")
 	ProgpowGardenGenesisHash     = common.HexToHash("0x7823e58617576af80cc557595380b55c2d565b294e3b6438fc11c4410e48da5e")
 	ProgpowOrchardGenesisHash    = common.HexToHash("0x4042b03aa7c4d6a58d4e6238b2da5c03dda97a0c7e7a7b1d237917a23ca4b0d6")
 	ProgpowLocalGenesisHash      = common.HexToHash("0x53a10194f6b385aa037fe1911b52a56d4d0ac8f95f3e98ac4f546269429c288d")