diff --git a/attestation/attestclient.go b/attestation/attestclient.go
index 1e58787..1592d55 100644
--- a/attestation/attestclient.go
+++ b/attestation/attestclient.go
@@ -439,12 +439,15 @@ func (w *AttestClient) SignTransaction(hash chainhash.Hash, msgTx wire.MsgTx) (
 		return nil, prevTxErr
 	}
 
-	var inputs []btcjson.RawTxInput // new tx inputs
-	var keys []string               // keys to sign inputs
+	var inputs []btcjson.RawTxWitnessInput // new tx inputs
+	var keys []string                      // keys to sign inputs
 
 	// add prev attestation tx input info and priv key
-	inputs = append(inputs, btcjson.RawTxInput{prevTxId.String(), 0,
-		hex.EncodeToString(prevTx.MsgTx().TxOut[0].PkScript), ""})
+	inputs = append(inputs, btcjson.RawTxWitnessInput{
+		Txid:         prevTxId.String(),
+		Vout:         0,
+		ScriptPubKey: hex.EncodeToString(prevTx.MsgTx().TxOut[0].PkScript),
+	})
 	keys = append(keys, key.String())
 
 	// for any remaining vins - sign with topup privkey
@@ -456,14 +459,18 @@ func (w *AttestClient) SignTransaction(hash chainhash.Hash, msgTx wire.MsgTx) (
 		if prevTxErr != nil {
 			return nil, prevTxErr
 		}
-		inputs = append(inputs, btcjson.RawTxInput{prevTxId.String(), 0,
-			hex.EncodeToString(prevTx.MsgTx().TxOut[0].PkScript), w.scriptTopup})
+		inputs = append(inputs, btcjson.RawTxWitnessInput{
+			Txid:         prevTxId.String(),
+			Vout:         0,
+			ScriptPubKey: hex.EncodeToString(prevTx.MsgTx().TxOut[0].PkScript),
+			RedeemScript: &w.scriptTopup,
+		})
 		keys = append(keys, w.WalletPrivTopup.String())
 	}
 
 	// attempt to sign transcation with provided inputs - keys
-	signedMsgTx, _, errSign := w.MainClient.SignRawTransaction3(
-		&msgTx, inputs, keys)
+	signedMsgTx, _, errSign := w.MainClient.SignRawTransactionWithWallet2(
+		&msgTx, inputs)
 	log.Infof("error: %v", errSign)
 	if errSign != nil {
 		return nil, errSign
diff --git a/crypto/tweaking.go b/crypto/tweaking.go
index e5c0211..9b8e501 100644
--- a/crypto/tweaking.go
+++ b/crypto/tweaking.go
@@ -140,7 +140,7 @@ func TweakExtendedKey(extndPubKey *hdkeychain.ExtendedKey, tweak []byte) (*hdkey
 		childInt := binary.BigEndian.Uint32(childBytes)
 
 		// get tweaked pubkey
-		extndPubKey, childErr = extndPubKey.Child(childInt)
+		extndPubKey, childErr = extndPubKey.Derive(childInt)
 		if childErr != nil {
 			return nil, childErr
 		}
diff --git a/go.mod b/go.mod
index 5f448ef..c135a90 100644
--- a/go.mod
+++ b/go.mod
@@ -3,19 +3,26 @@ module mainstay
 go 1.20
 
 require (
-	github.com/btcsuite/btcd v0.20.0-beta
-	github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d
-
+	github.com/btcsuite/btcd v0.22.0-beta
+	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
 	go.mongodb.org/mongo-driver v1.3.1
 )
 
 require (
+	github.com/aead/siphash v1.0.1 // indirect
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
 	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
+	github.com/btcsuite/goleveldb v1.0.0 // indirect
+	github.com/btcsuite/snappy-go v1.0.0 // indirect
 	github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
+	github.com/btcsuite/winsvc v1.0.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/decred/dcrd/lru v1.0.0 // indirect
 	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
+	github.com/jessevdk/go-flags v1.4.0 // indirect
+	github.com/jrick/logrotate v1.0.0 // indirect
+	github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23 // indirect
 	github.com/klauspost/compress v1.9.5 // indirect
 	github.com/pkg/errors v0.8.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
@@ -23,7 +30,7 @@ require (
 	github.com/stretchr/testify v1.8.4 // indirect
 	github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c // indirect
 	github.com/xdg/stringprep v0.0.0-20180714160509-73f8eece6fdc // indirect
-	golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5 // indirect
+	golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37 // indirect
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58 // indirect
 	golang.org/x/text v0.3.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect