diff --git a/contracts/XDCx/simulation/fee/trading/main.go b/contracts/XDCx/simulation/fee/trading/main.go
index 2b562aa0eb..aa8d096b75 100644
--- a/contracts/XDCx/simulation/fee/trading/main.go
+++ b/contracts/XDCx/simulation/fee/trading/main.go
@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/XinFinOrg/XDPoSChain/contracts/XDCx/simulation"
 	"math/big"
 	"os"
 	"strconv"
@@ -12,6 +11,7 @@ import (
 	"github.com/XinFinOrg/XDPoSChain/accounts/abi/bind"
 	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/contracts/XDCx"
+	"github.com/XinFinOrg/XDPoSChain/contracts/XDCx/simulation"
 	"github.com/XinFinOrg/XDPoSChain/crypto"
 	"github.com/XinFinOrg/XDPoSChain/ethclient"
 )
diff --git a/contracts/multisigwallet/multisigwallet.go b/contracts/multisigwallet/multisigwallet.go
index 943fa80a43..63d9c685ae 100644
--- a/contracts/multisigwallet/multisigwallet.go
+++ b/contracts/multisigwallet/multisigwallet.go
@@ -16,10 +16,11 @@
 package multisigwallet
 
 import (
+	"math/big"
+
 	"github.com/XinFinOrg/XDPoSChain/accounts/abi/bind"
 	"github.com/XinFinOrg/XDPoSChain/common"
 	"github.com/XinFinOrg/XDPoSChain/contracts/multisigwallet/contract"
-	"math/big"
 )
 
 type MultiSigWallet struct {
diff --git a/ethdb/database.go b/ethdb/database.go
index 634bd1de2d..923c0a7a57 100644
--- a/ethdb/database.go
+++ b/ethdb/database.go
@@ -18,8 +18,9 @@
 package ethdb
 
 import (
-	"github.com/XinFinOrg/XDPoSChain/common"
 	"io"
+
+	"github.com/XinFinOrg/XDPoSChain/common"
 )
 
 // KeyValueReader wraps the Has and Get method of a backing data store.