diff --git a/app/app.go b/app/app.go
index e05039ac4..d3b628c2d 100644
--- a/app/app.go
+++ b/app/app.go
@@ -360,6 +360,9 @@ func SetUpgradeConfig(upgradeConfig *config.UpgradeConfig) {
 	upgrade.Mgr.AddUpgradeHeight(upgrade.FixDoubleSignChainId, upgradeConfig.FixDoubleSignChainIdHeight)
 	upgrade.Mgr.AddUpgradeHeight(upgrade.BEP126, upgradeConfig.BEP126Height)
 	upgrade.Mgr.AddUpgradeHeight(upgrade.BEP255, upgradeConfig.BEP255Height)
+	upgrade.Mgr.AddUpgradeHeight(upgrade.FirstSunset, upgradeConfig.FirstSunsetHeight)
+	upgrade.Mgr.AddUpgradeHeight(upgrade.SecondSunset, upgradeConfig.SecondSunsetHeight)
+	upgrade.Mgr.AddUpgradeHeight(upgrade.FinalSunset, upgradeConfig.FinalSunsetHeight)
 
 	// register store keys of upgrade
 	upgrade.Mgr.RegisterStoreKeys(upgrade.BEP9, common.TimeLockStoreKey.Name())
diff --git a/app/config/config.go b/app/config/config.go
index 63df8ce91..5a0285cb5 100644
--- a/app/config/config.go
+++ b/app/config/config.go
@@ -103,6 +103,12 @@ FixDoubleSignChainIdHeight = {{ .UpgradeConfig.FixDoubleSignChainIdHeight }}
 BEP126Height = {{ .UpgradeConfig.BEP126Height }}
 # Block height of BEP255 upgrade
 BEP255Height = {{ .UpgradeConfig.BEP255Height }}
+# Block height of FirstSunset upgrade
+FirstSunsetHeight = {{ .UpgradeConfig.FirstSunsetHeight }}
+# Block height of SecondSunset upgrade
+SecondSunsetHeight = {{ .UpgradeConfig.SecondSunsetHeight }}
+# Block height of FinalSunset upgrade
+FinalSunsetHeight = {{ .UpgradeConfig.FinalSunsetHeight }}
 
 [query]
 # ABCI query interface black list, suggested value: ["custom/gov/proposals", "custom/timelock/timelocks", "custom/atomicSwap/swapcreator", "custom/atomicSwap/swaprecipient"]
@@ -552,6 +558,9 @@ type UpgradeConfig struct {
 	FixDoubleSignChainIdHeight                      int64 `mapstructure:"FixDoubleSignChainIdHeight"`
 	BEP126Height                                    int64 `mapstructure:"BEP126Height"`
 	BEP255Height                                    int64 `mapstructure:"BEP255Height"`
+	FirstSunsetHeight                               int64 `mapstructure:"FirstSunsetHeight"`
+	SecondSunsetHeight                              int64 `mapstructure:"SecondSunsetHeight"`
+	FinalSunsetHeight                               int64 `mapstructure:"FinalSunsetHeight"`
 }
 
 func defaultUpgradeConfig() *UpgradeConfig {
@@ -586,7 +595,10 @@ func defaultUpgradeConfig() *UpgradeConfig {
 		BEP171Height:                      math.MaxInt64,
 		FixFailAckPackageHeight:           math.MaxInt64,
 		EnableAccountScriptsForCrossChainTransferHeight: math.MaxInt64,
-		BEP255Height: math.MaxInt64,
+		BEP255Height:       math.MaxInt64,
+		FirstSunsetHeight:  math.MaxInt64,
+		SecondSunsetHeight: math.MaxInt64,
+		FinalSunsetHeight:  math.MaxInt64,
 	}
 }
 
diff --git a/common/upgrade/upgrade.go b/common/upgrade/upgrade.go
index d304e4c32..cb52b401c 100644
--- a/common/upgrade/upgrade.go
+++ b/common/upgrade/upgrade.go
@@ -49,7 +49,10 @@ const (
 	BEP171                      = sdk.BEP171 // https://github.com/bnb-chain/BEPs/pull/171 Security Enhancement for Cross-Chain Module
 	BEP173                      = sdk.BEP173 // https://github.com/bnb-chain/BEPs/pull/173 Text Proposal
 	FixDoubleSignChainId        = sdk.FixDoubleSignChainId
-	BEP255                      = sdk.BEP255 // https://github.com/bnb-chain/BEPs/pull/255 Asset Reconciliation for Security Enhancement
+	BEP255                      = sdk.BEP255           // https://github.com/bnb-chain/BEPs/pull/255 Asset Reconciliation for Security Enhancement
+	FirstSunset                 = sdk.FirstSunsetFork  // https://github.com/bnb-chain/BEPs/pull/333 BNB Chain Fusion
+	SecondSunset                = sdk.SecondSunsetFork // https://github.com/bnb-chain/BEPs/pull/333 BNB Chain Fusion
+	FinalSunset                 = sdk.FinalSunsetFork  // https://github.com/bnb-chain/BEPs/pull/333 BNB Chain Fusion
 )
 
 func UpgradeBEP10(before func(), after func()) {