diff --git a/go.mod b/go.mod
index efb5943..0ac7b40 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/ethereum/go-ethereum v1.14.3
 	github.com/ethersphere/bee/v2 v2.2.0
 	github.com/ethersphere/beekeeper v0.17.8
-	github.com/ethersphere/go-sw3-abi v0.6.6
+	github.com/ethersphere/go-sw3-abi v0.6.5
 	github.com/spf13/cobra v1.8.0
 	github.com/stretchr/testify v1.8.4
 	k8s.io/apimachinery v0.22.16
diff --git a/go.sum b/go.sum
index 0ec9c8b..5fc2884 100644
--- a/go.sum
+++ b/go.sum
@@ -103,8 +103,8 @@ github.com/ethersphere/bee/v2 v2.2.0 h1:UOrnGuacIlRD9RHSux9W13eI0ppsJvz6Xa0MTn6U
 github.com/ethersphere/bee/v2 v2.2.0/go.mod h1:9mrRirUnAJwSmnB9kJBx6Bo94LCgFrj2jYDJA20SIe0=
 github.com/ethersphere/beekeeper v0.17.8 h1:8hsokcCvmNMFcIc64RqgD+nwAQNtAWl9Xs90mgR2G7I=
 github.com/ethersphere/beekeeper v0.17.8/go.mod h1:HDermnHjOyI/1kHOVfoSdzVz0hIZzBVsDLKnFNDiCuk=
-github.com/ethersphere/go-sw3-abi v0.6.6 h1:jYEYQjU3q7rAoD4k7mTjGxzDrYFFEh94YJbSWNNmjKM=
-github.com/ethersphere/go-sw3-abi v0.6.6/go.mod h1:BmpsvJ8idQZdYEtWnvxA8POYQ8Rl/NhyCdF0zLMOOJU=
+github.com/ethersphere/go-sw3-abi v0.6.5 h1:M5dcIe1zQYvGpY2K07UNkNU9Obc4U+A1fz68Ho/Q+XE=
+github.com/ethersphere/go-sw3-abi v0.6.5/go.mod h1:BmpsvJ8idQZdYEtWnvxA8POYQ8Rl/NhyCdF0zLMOOJU=
 github.com/evanphx/json-patch v4.11.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/fjl/memsize v0.0.2 h1:27txuSD9or+NZlnOWdKUxeBzTAUkWCVh+4Gf2dWFOzA=
 github.com/fjl/memsize v0.0.2/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
diff --git a/pkg/wallet/token.go b/pkg/wallet/token.go
index d42770a..e5ab1b5 100644
--- a/pkg/wallet/token.go
+++ b/pkg/wallet/token.go
@@ -29,9 +29,9 @@ var chainToSwarmTokenMap = map[int64]Token{
 		Decimals: SwarmTokenDecimals,
 	},
 
-	// Mainnet
+	// Gnosis Mainnet
 	100: {
-		Contract: common.HexToAddress("0x19062190b1925b5b6689d7073fdfc8c2976ef8cb"),
+		Contract: common.HexToAddress("0xdBF3Ea6F5beE45c02255B2c26a16F300502F68da"),
 		Symbol:   "xBZZ",
 		Decimals: SwarmTokenDecimals,
 	},
diff --git a/pkg/wallet/wallet.go b/pkg/wallet/wallet.go
index 66bf5ca..71e948a 100644
--- a/pkg/wallet/wallet.go
+++ b/pkg/wallet/wallet.go
@@ -17,7 +17,7 @@ import (
 	"github.com/ethersphere/go-sw3-abi/sw3abi"
 )
 
-var erc20ABI = mustParseABI(sw3abi.ERC20ABIv0_3_1)
+var erc20ABI = mustParseABI(sw3abi.ERC20ABIv0_6_5)
 
 type TokenWallet interface {
 	Balance(
@@ -176,10 +176,13 @@ func (w *erc20Wallet) Balance(
 		return nil, fmt.Errorf("failed to call contract, %w", err)
 	}
 
+	if len(resp) == 0 {
+		return nil, fmt.Errorf("empty response from contract call: contract=%s", token.Contract.Hex())
+	}
+
 	var balance *big.Int
 
-	err = erc20ABI.UnpackIntoInterface(&balance, "balanceOf", resp)
-	if err != nil {
+	if err = erc20ABI.UnpackIntoInterface(&balance, "balanceOf", resp); err != nil {
 		return nil, fmt.Errorf("failed to unpack abi, %w", err)
 	}
 
@@ -204,16 +207,15 @@ func (w *erc20Wallet) Transfer(
 
 	// Custom handling for LocalnetChainID.
 	if chainID.Int64() == LocalnetChainID {
-		localnetMintFunction, decodeErr := hex.DecodeString("40c10f19") // mint(address,uint256)
-		if decodeErr != nil {
+		mint, err := hex.DecodeString("40c10f19") // mint(address,uint256)
+		if err != nil {
 			return fmt.Errorf("failed decode string %w", err)
 		}
 		// Replace the first 4 bytes of the call data (transfer) with the localnet mint function.
-		copy(callData[:4], localnetMintFunction)
+		copy(callData[:4], mint)
 	}
 
-	err = w.trxSender.Send(ctx, token.Contract, nil, callData)
-	if err != nil {
+	if err = w.trxSender.Send(ctx, token.Contract, nil, callData); err != nil {
 		return fmt.Errorf("failed to make ERC20 token transfer, %w", err)
 	}