diff --git a/custom/auth/client/utils/feeutils.go b/custom/auth/client/utils/feeutils.go
index 7496b20e..30123f82 100644
--- a/custom/auth/client/utils/feeutils.go
+++ b/custom/auth/client/utils/feeutils.go
@@ -46,7 +46,8 @@ func ComputeFeesWithCmd(
 	gasStr, _ := flagSet.GetString(flags.FlagGas)
 	switch gasStr {
 	case flags.GasFlagAuto:
-		// skip
+		txf = txf.WithGas(0)
+		txf = txf.WithSimulateAndExecute(true)
 	case "":
 		txf = txf.WithGas(0)
 		txf = txf.WithSimulateAndExecute(true)
@@ -123,8 +124,9 @@ func CalculateGas(
 		return nil, 0, err
 	}
 
-	taxGas := simSpecialRes.GasInfo.GasUsed - simRes.GasInfo.GasUsed
-	actualGas := uint64(txf.GasAdjustment() * float64(simRes.GasInfo.GasUsed))
+	taxGas := simRes.GasInfo.GasUsed - simSpecialRes.GasInfo.GasUsed
+	actualGas := uint64(txf.GasAdjustment() * float64(simSpecialRes.GasInfo.GasUsed))
+	simRes.GasInfo = simSpecialRes.GasInfo
 	return simRes, actualGas + taxGas, nil
 }
 
diff --git a/custom/wasm/keeper/handler_plugin.go b/custom/wasm/keeper/handler_plugin.go
index 12987836..f22e959d 100644
--- a/custom/wasm/keeper/handler_plugin.go
+++ b/custom/wasm/keeper/handler_plugin.go
@@ -97,7 +97,7 @@ func (h SDKMessageHandler) DispatchMsg(ctx sdk.Context, contractAddr sdk.AccAddr
 					return nil, nil, err
 				}
 				ctx.TaxGasMeter().ConsumeGas(taxGas, "tax gas")
-				if ctx.IsSpecialSimulate() {
+				if ctx.IsSimulate() {
 					ctx.CacheTaxGasMeter().ConsumeGas(taxGas, "tax gas")
 				}
 
diff --git a/go.mod b/go.mod
index 4544f7a6..d18f8482 100644
--- a/go.mod
+++ b/go.mod
@@ -227,7 +227,7 @@ replace (
 	// use cometbft
 	github.com/cometbft/cometbft => github.com/classic-terra/cometbft v0.37.4-terra1
 	github.com/cometbft/cometbft-db => github.com/cometbft/cometbft-db v0.8.0
-	github.com/cosmos/cosmos-sdk => github.com/classic-terra/cosmos-sdk v0.47.10-terra.2
+	github.com/cosmos/cosmos-sdk => ../Upgrade/cosmos-sdk
 	github.com/cosmos/ibc-go/v7 => github.com/classic-terra/ibc-go/v7 v7.4.0-terra.1
 	github.com/cosmos/ledger-cosmos-go => github.com/terra-money/ledger-terra-go v0.11.2
 	// replace goleveldb to optimized one
diff --git a/go.sum b/go.sum
index f848552d..467109c0 100644
--- a/go.sum
+++ b/go.sum
@@ -350,8 +350,6 @@ github.com/circonus-labs/circonus-gometrics v2.3.1+incompatible/go.mod h1:nmEj6D
 github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp5jckzBHf4XRpQvBOLI+I=
 github.com/classic-terra/cometbft v0.37.4-terra1 h1:eT5B2n5KKi5WVW+3ZNOVTmtfKKaZrXOLX9G80m9mhZo=
 github.com/classic-terra/cometbft v0.37.4-terra1/go.mod h1:vFqj7Qe3uFFJvHZleTJPQDmJ/WscXHi4rKWqiCAaNZk=
-github.com/classic-terra/cosmos-sdk v0.47.10-terra.2 h1:f54DHwGuOcyrWToTYKpFLy1i5qUz9GAtc6DOg7rF6zI=
-github.com/classic-terra/cosmos-sdk v0.47.10-terra.2/go.mod h1:Qgm2WbKtqHgE1v9eAra7Fos/zAcB7F4ikwwbDm9SV+o=
 github.com/classic-terra/goleveldb v0.0.0-20230914223247-2b28f6655121 h1:fjpWDB0hm225wYg9vunyDyTH8ftd5xEUgINJKidj+Tw=
 github.com/classic-terra/goleveldb v0.0.0-20230914223247-2b28f6655121/go.mod h1:q4W45IWZaF22tdD+VEXcAWRA037jwmWEB5VWYORlTpc=
 github.com/classic-terra/ibc-go/v7 v7.4.0-terra.1 h1:xPT04cguu/Tt//x8eOKQVZP3RfYh/JDaBS4jPexK/OM=
diff --git a/x/tax2gas/ante/ante.go b/x/tax2gas/ante/ante.go
index b75d5719..434647b9 100644
--- a/x/tax2gas/ante/ante.go
+++ b/x/tax2gas/ante/ante.go
@@ -116,7 +116,7 @@ func (fd FeeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, nex
 		WithValue(types.FinalGasPrices, gasPrices)
 	if !taxGas.IsZero() {
 		newCtx.TaxGasMeter().ConsumeGas(taxGas, "ante handler taxGas")
-		if ctx.IsSpecialSimulate() {
+		if ctx.IsSimulate() {
 			ctx.CacheTaxGasMeter().ConsumeGas(taxGas, "tax gas")
 		}
 	}
diff --git a/x/tax2gas/post/post.go b/x/tax2gas/post/post.go
index 100ae476..a6709465 100644
--- a/x/tax2gas/post/post.go
+++ b/x/tax2gas/post/post.go
@@ -91,7 +91,7 @@ func (tgd Tax2gasPostDecorator) PostHandle(ctx sdk.Context, tx sdk.Tx, simulate
 		taxGasUint64 := taxGas.Uint64()
 		// Check if gas not overflow
 		if totalGasConsumed+taxGasUint64 >= totalGasConsumed && totalGasConsumed+taxGasUint64 >= taxGasUint64 {
-			if ctx.IsSpecialSimulate() {
+			if ctx.IsSimulate() {
 				if taxGasUint64+totalGasConsumed > ctx.GasMeter().Limit() {
 					ctx.GasMeter().ExtendGasLimit()
 				}