diff --git a/crypto/ckd/child_key_derivation.go b/crypto/ckd/child_key_derivation.go
index fd608723..422cffed 100644
--- a/crypto/ckd/child_key_derivation.go
+++ b/crypto/ckd/child_key_derivation.go
@@ -16,7 +16,7 @@ import (
 
 	"github.com/bnb-chain/tss-lib/v2/common"
 	"github.com/bnb-chain/tss-lib/v2/crypto"
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/btcsuite/btcutil/base58"
 	"golang.org/x/crypto/ripemd160"
 )
@@ -106,13 +106,15 @@ func NewExtendedKeyFromString(key string, curve elliptic.Curve) (*ExtendedKey, e
 	var pubKey ecdsa.PublicKey
 
 	if c, ok := curve.(*btcec.KoblitzCurve); ok {
-		// Ensure the public key parses correctly and is actually on the
-		// secp256k1 curve.
-		pk, err := btcec.ParsePubKey(keyData, c)
+		pk, err := btcec.ParsePubKey(keyData)
 		if err != nil {
 			return nil, err
 		}
-		pubKey = ecdsa.PublicKey(*pk)
+		pubKey = ecdsa.PublicKey{
+			Curve: c,
+			X:     pk.X(),
+			Y:     pk.Y(),
+		}
 	} else {
 		px, py := elliptic.Unmarshal(curve, keyData)
 		pubKey = ecdsa.PublicKey{
diff --git a/crypto/ckd/child_key_derivation_test.go b/crypto/ckd/child_key_derivation_test.go
index 9f97f78f..6511e4ef 100644
--- a/crypto/ckd/child_key_derivation_test.go
+++ b/crypto/ckd/child_key_derivation_test.go
@@ -10,7 +10,7 @@ import (
 	"testing"
 
 	. "github.com/bnb-chain/tss-lib/v2/crypto/ckd"
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 )
 
 func TestPublicDerivation(t *testing.T) {
diff --git a/crypto/ecpoint_test.go b/crypto/ecpoint_test.go
index f3cf1af7..5f745dbc 100644
--- a/crypto/ecpoint_test.go
+++ b/crypto/ecpoint_test.go
@@ -13,7 +13,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/decred/dcrd/dcrec/edwards/v2"
 	"github.com/stretchr/testify/assert"
 
@@ -126,10 +126,10 @@ func TestS256EcpointJsonSerialization(t *testing.T) {
 
 	pubKeyBytes, err := hex.DecodeString("03935336acb03b2b801d8f8ac5e92c56c4f6e93319901fdfffba9d340a874e2879")
 	assert.NoError(t, err)
-	pbk, err := btcec.ParsePubKey(pubKeyBytes, btcec.S256())
+	pbk, err := btcec.ParsePubKey(pubKeyBytes)
 	assert.NoError(t, err)
 
-	point, err := NewECPoint(ec, pbk.X, pbk.Y)
+	point, err := NewECPoint(ec, pbk.X(), pbk.Y())
 	assert.NoError(t, err)
 	bz, err := json.Marshal(point)
 	assert.NoError(t, err)
diff --git a/ecdsa/keygen/local_party.go b/ecdsa/keygen/local_party.go
index 05be2554..68e2b772 100644
--- a/ecdsa/keygen/local_party.go
+++ b/ecdsa/keygen/local_party.go
@@ -32,7 +32,7 @@ type (
 
 		// outbound messaging
 		out chan<- tss.Message
-		end chan<- LocalPartySaveData
+		end chan<- *LocalPartySaveData
 	}
 
 	localMessageStore struct {
@@ -60,7 +60,7 @@ type (
 func NewLocalParty(
 	params *tss.Parameters,
 	out chan<- tss.Message,
-	end chan<- LocalPartySaveData,
+	end chan<- *LocalPartySaveData,
 	optionalPreParams ...LocalPreParams,
 ) tss.Party {
 	partyCount := params.PartyCount()
diff --git a/ecdsa/keygen/local_party_test.go b/ecdsa/keygen/local_party_test.go
index 66499479..ac9d4e2a 100644
--- a/ecdsa/keygen/local_party_test.go
+++ b/ecdsa/keygen/local_party_test.go
@@ -183,7 +183,7 @@ func TestE2EConcurrentAndSaveFixtures(t *testing.T) {
 
 	errCh := make(chan *tss.Error, len(pIDs))
 	outCh := make(chan tss.Message, len(pIDs))
-	endCh := make(chan LocalPartySaveData, len(pIDs))
+	endCh := make(chan *LocalPartySaveData, len(pIDs))
 
 	updater := test.SharedPartyUpdater
 
@@ -243,7 +243,7 @@ keygen:
 			// .. here comes a workaround to recover this party's index (it was removed from save data)
 			index, err := save.OriginalIndex()
 			assert.NoErrorf(t, err, "should not be an error getting a party's index from save data")
-			tryWriteTestFixtureFile(t, index, save)
+			tryWriteTestFixtureFile(t, index, *save)
 
 			atomic.AddInt32(&ended, 1)
 			if atomic.LoadInt32(&ended) == int32(len(pIDs)) {
diff --git a/ecdsa/keygen/round_1.go b/ecdsa/keygen/round_1.go
index 306ca2be..4854e1c4 100644
--- a/ecdsa/keygen/round_1.go
+++ b/ecdsa/keygen/round_1.go
@@ -23,7 +23,7 @@ var (
 )
 
 // round 1 represents round 1 of the keygen part of the GG18 ECDSA TSS spec (Gennaro, Goldfeder; 2018)
-func newRound1(params *tss.Parameters, save *LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- LocalPartySaveData) tss.Round {
+func newRound1(params *tss.Parameters, save *LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- *LocalPartySaveData) tss.Round {
 	return &round1{
 		&base{params, save, temp, out, end, make([]bool, len(params.Parties().IDs())), false, 1}}
 }
diff --git a/ecdsa/keygen/round_4.go b/ecdsa/keygen/round_4.go
index 23abc2dc..17bfd949 100644
--- a/ecdsa/keygen/round_4.go
+++ b/ecdsa/keygen/round_4.go
@@ -73,7 +73,7 @@ func (round *round4) Start() *tss.Error {
 		return round.WrapError(errors.New("paillier verify failed"), culprits...)
 	}
 
-	round.end <- *round.save
+	round.end <- round.save
 
 	return nil
 }
diff --git a/ecdsa/keygen/rounds.go b/ecdsa/keygen/rounds.go
index 48f82691..2d3e76fc 100644
--- a/ecdsa/keygen/rounds.go
+++ b/ecdsa/keygen/rounds.go
@@ -23,7 +23,7 @@ type (
 		save    *LocalPartySaveData
 		temp    *localTempData
 		out     chan<- tss.Message
-		end     chan<- LocalPartySaveData
+		end     chan<- *LocalPartySaveData
 		ok      []bool // `ok` tracks parties which have been verified by Update()
 		started bool
 		number  int
diff --git a/ecdsa/resharing/local_party.go b/ecdsa/resharing/local_party.go
index 00c403e6..85faf4c5 100644
--- a/ecdsa/resharing/local_party.go
+++ b/ecdsa/resharing/local_party.go
@@ -33,7 +33,7 @@ type (
 
 		// outbound messaging
 		out chan<- tss.Message
-		end chan<- keygen.LocalPartySaveData
+		end chan<- *keygen.LocalPartySaveData
 	}
 
 	localMessageStore struct {
@@ -72,7 +72,7 @@ func NewLocalParty(
 	params *tss.ReSharingParameters,
 	key keygen.LocalPartySaveData,
 	out chan<- tss.Message,
-	end chan<- keygen.LocalPartySaveData,
+	end chan<- *keygen.LocalPartySaveData,
 ) tss.Party {
 	oldPartyCount := len(params.OldParties().IDs())
 	subset := key
diff --git a/ecdsa/resharing/local_party_test.go b/ecdsa/resharing/local_party_test.go
index df2981ac..e205c5e1 100644
--- a/ecdsa/resharing/local_party_test.go
+++ b/ecdsa/resharing/local_party_test.go
@@ -66,7 +66,7 @@ func TestE2EConcurrent(t *testing.T) {
 
 	errCh := make(chan *tss.Error, bothCommitteesPax)
 	outCh := make(chan tss.Message, bothCommitteesPax)
-	endCh := make(chan keygen.LocalPartySaveData, bothCommitteesPax)
+	endCh := make(chan *keygen.LocalPartySaveData, bothCommitteesPax)
 
 	updater := test.SharedPartyUpdater
 
@@ -140,7 +140,7 @@ func TestE2EConcurrent(t *testing.T) {
 			if save.Xi != nil {
 				index, err := save.OriginalIndex()
 				assert.NoErrorf(t, err, "should not be an error getting a party's index from save data")
-				newKeys[index] = save
+				newKeys[index] = *save
 			} else {
 				endedOldCommittee++
 			}
diff --git a/ecdsa/resharing/round_1_old_step_1.go b/ecdsa/resharing/round_1_old_step_1.go
index 8e1ce9c4..be8a2ec8 100644
--- a/ecdsa/resharing/round_1_old_step_1.go
+++ b/ecdsa/resharing/round_1_old_step_1.go
@@ -20,7 +20,7 @@ import (
 )
 
 // round 1 represents round 1 of the keygen part of the GG18 ECDSA TSS spec (Gennaro, Goldfeder; 2018)
-func newRound1(params *tss.ReSharingParameters, input, save *keygen.LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- keygen.LocalPartySaveData) tss.Round {
+func newRound1(params *tss.ReSharingParameters, input, save *keygen.LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- *keygen.LocalPartySaveData) tss.Round {
 	return &round1{
 		&base{params, temp, input, save, out, end, make([]bool, len(params.OldParties().IDs())), make([]bool, len(params.NewParties().IDs())), false, 1}}
 }
diff --git a/ecdsa/resharing/round_5_new_step_3.go b/ecdsa/resharing/round_5_new_step_3.go
index 6c149c02..9f46ed20 100644
--- a/ecdsa/resharing/round_5_new_step_3.go
+++ b/ecdsa/resharing/round_5_new_step_3.go
@@ -69,7 +69,7 @@ func (round *round5) Start() *tss.Error {
 		round.input.Xi.SetInt64(0)
 	}
 
-	round.end <- *round.save
+	round.end <- round.save
 	return nil
 }
 
diff --git a/ecdsa/resharing/rounds.go b/ecdsa/resharing/rounds.go
index d2c24e81..a76b1998 100644
--- a/ecdsa/resharing/rounds.go
+++ b/ecdsa/resharing/rounds.go
@@ -26,7 +26,7 @@ type (
 		temp        *localTempData
 		input, save *keygen.LocalPartySaveData
 		out         chan<- tss.Message
-		end         chan<- keygen.LocalPartySaveData
+		end         chan<- *keygen.LocalPartySaveData
 		oldOK,      // old committee "ok" tracker
 		newOK []bool // `ok` tracks parties which have been verified by Update(); this one is for the new committee
 		started bool
diff --git a/ecdsa/signing/local_party_test.go b/ecdsa/signing/local_party_test.go
index ffab5402..a1680b5f 100644
--- a/ecdsa/signing/local_party_test.go
+++ b/ecdsa/signing/local_party_test.go
@@ -14,7 +14,7 @@ import (
 	"sync/atomic"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/ipfs/go-log"
 	"github.com/stretchr/testify/assert"
 
diff --git a/eddsa/keygen/local_party.go b/eddsa/keygen/local_party.go
index ebff0292..11601e0b 100644
--- a/eddsa/keygen/local_party.go
+++ b/eddsa/keygen/local_party.go
@@ -32,7 +32,7 @@ type (
 
 		// outbound messaging
 		out chan<- tss.Message
-		end chan<- LocalPartySaveData
+		end chan<- *LocalPartySaveData
 	}
 
 	localMessageStore struct {
@@ -61,7 +61,7 @@ type (
 func NewLocalParty(
 	params *tss.Parameters,
 	out chan<- tss.Message,
-	end chan<- LocalPartySaveData,
+	end chan<- *LocalPartySaveData,
 ) tss.Party {
 	partyCount := params.PartyCount()
 	data := NewLocalPartySaveData(partyCount)
diff --git a/eddsa/keygen/local_party_test.go b/eddsa/keygen/local_party_test.go
index cad65cb3..119371f6 100644
--- a/eddsa/keygen/local_party_test.go
+++ b/eddsa/keygen/local_party_test.go
@@ -52,7 +52,7 @@ func TestE2EConcurrentAndSaveFixtures(t *testing.T) {
 
 	errCh := make(chan *tss.Error, len(pIDs))
 	outCh := make(chan tss.Message, len(pIDs))
-	endCh := make(chan LocalPartySaveData, len(pIDs))
+	endCh := make(chan *LocalPartySaveData, len(pIDs))
 
 	updater := test.SharedPartyUpdater
 
@@ -108,7 +108,7 @@ keygen:
 			// .. here comes a workaround to recover this party's index (it was removed from save data)
 			index, err := save.OriginalIndex()
 			assert.NoErrorf(t, err, "should not be an error getting a party's index from save data")
-			tryWriteTestFixtureFile(t, index, save)
+			tryWriteTestFixtureFile(t, index, *save)
 
 			atomic.AddInt32(&ended, 1)
 			if atomic.LoadInt32(&ended) == int32(len(pIDs)) {
diff --git a/eddsa/keygen/round_1.go b/eddsa/keygen/round_1.go
index 90485ee6..9fc694e0 100644
--- a/eddsa/keygen/round_1.go
+++ b/eddsa/keygen/round_1.go
@@ -22,7 +22,7 @@ var (
 )
 
 // round 1 represents round 1 of the keygen part of the EDDSA TSS spec
-func newRound1(params *tss.Parameters, save *LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- LocalPartySaveData) tss.Round {
+func newRound1(params *tss.Parameters, save *LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- *LocalPartySaveData) tss.Round {
 	return &round1{
 		&base{params, save, temp, out, end, make([]bool, len(params.Parties().IDs())), false, 1}}
 }
diff --git a/eddsa/keygen/round_3.go b/eddsa/keygen/round_3.go
index 2ffa27b3..4bbb15e7 100644
--- a/eddsa/keygen/round_3.go
+++ b/eddsa/keygen/round_3.go
@@ -196,7 +196,7 @@ func (round *round3) Start() *tss.Error {
 	// PRINT public key & private share
 	common.Logger.Debugf("%s public key: %x", round.PartyID(), eddsaPubKey)
 
-	round.end <- *round.save
+	round.end <- round.save
 	return nil
 }
 
diff --git a/eddsa/keygen/rounds.go b/eddsa/keygen/rounds.go
index d361e5c3..cc880508 100644
--- a/eddsa/keygen/rounds.go
+++ b/eddsa/keygen/rounds.go
@@ -23,7 +23,7 @@ type (
 		save    *LocalPartySaveData
 		temp    *localTempData
 		out     chan<- tss.Message
-		end     chan<- LocalPartySaveData
+		end     chan<- *LocalPartySaveData
 		ok      []bool // `ok` tracks parties which have been verified by Update()
 		started bool
 		number  int
diff --git a/eddsa/resharing/local_party.go b/eddsa/resharing/local_party.go
index 45e74a8b..5e7aebf9 100644
--- a/eddsa/resharing/local_party.go
+++ b/eddsa/resharing/local_party.go
@@ -33,7 +33,7 @@ type (
 
 		// outbound messaging
 		out chan<- tss.Message
-		end chan<- keygen.LocalPartySaveData
+		end chan<- *keygen.LocalPartySaveData
 	}
 
 	localMessageStore struct {
@@ -67,7 +67,7 @@ func NewLocalParty(
 	params *tss.ReSharingParameters,
 	key keygen.LocalPartySaveData,
 	out chan<- tss.Message,
-	end chan<- keygen.LocalPartySaveData,
+	end chan<- *keygen.LocalPartySaveData,
 ) tss.Party {
 	oldPartyCount := len(params.OldParties().IDs())
 	subset := key
diff --git a/eddsa/resharing/local_party_test.go b/eddsa/resharing/local_party_test.go
index a07554dd..72411c0c 100644
--- a/eddsa/resharing/local_party_test.go
+++ b/eddsa/resharing/local_party_test.go
@@ -62,7 +62,7 @@ func TestE2EConcurrent(t *testing.T) {
 
 	errCh := make(chan *tss.Error, bothCommitteesPax)
 	outCh := make(chan tss.Message, bothCommitteesPax)
-	endCh := make(chan keygen.LocalPartySaveData, bothCommitteesPax)
+	endCh := make(chan *keygen.LocalPartySaveData, bothCommitteesPax)
 
 	updater := test.SharedPartyUpdater
 
@@ -129,7 +129,7 @@ func TestE2EConcurrent(t *testing.T) {
 			if save.Xi != nil {
 				index, err := save.OriginalIndex()
 				assert.NoErrorf(t, err, "should not be an error getting a party's index from save data")
-				newKeys[index] = save
+				newKeys[index] = *save
 			} else {
 				endedOldCommittee++
 			}
diff --git a/eddsa/resharing/round_1_old_step_1.go b/eddsa/resharing/round_1_old_step_1.go
index bdb7eb72..9f997d58 100644
--- a/eddsa/resharing/round_1_old_step_1.go
+++ b/eddsa/resharing/round_1_old_step_1.go
@@ -19,7 +19,7 @@ import (
 )
 
 // round 1 represents round 1 of the keygen part of the EDDSA TSS spec
-func newRound1(params *tss.ReSharingParameters, input, save *keygen.LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- keygen.LocalPartySaveData) tss.Round {
+func newRound1(params *tss.ReSharingParameters, input, save *keygen.LocalPartySaveData, temp *localTempData, out chan<- tss.Message, end chan<- *keygen.LocalPartySaveData) tss.Round {
 	return &round1{
 		&base{params, temp, input, save, out, end, make([]bool, len(params.OldParties().IDs())), make([]bool, len(params.NewParties().IDs())), false, 1}}
 }
diff --git a/eddsa/resharing/round_5_new_step_3.go b/eddsa/resharing/round_5_new_step_3.go
index 6a4d5e75..3abc2f28 100644
--- a/eddsa/resharing/round_5_new_step_3.go
+++ b/eddsa/resharing/round_5_new_step_3.go
@@ -33,7 +33,7 @@ func (round *round5) Start() *tss.Error {
 		round.input.Xi.SetInt64(0)
 	}
 
-	round.end <- *round.save
+	round.end <- round.save
 	return nil
 }
 
diff --git a/eddsa/resharing/rounds.go b/eddsa/resharing/rounds.go
index e9c79034..07d1f90e 100644
--- a/eddsa/resharing/rounds.go
+++ b/eddsa/resharing/rounds.go
@@ -21,7 +21,7 @@ type (
 		temp        *localTempData
 		input, save *keygen.LocalPartySaveData
 		out         chan<- tss.Message
-		end         chan<- keygen.LocalPartySaveData
+		end         chan<- *keygen.LocalPartySaveData
 		oldOK,      // old committee "ok" tracker
 		newOK []bool // `ok` tracks parties which have been verified by Update(); this one is for the new committee
 		started bool
diff --git a/go.mod b/go.mod
index 05953027..499f9466 100644
--- a/go.mod
+++ b/go.mod
@@ -3,22 +3,18 @@ module github.com/bnb-chain/tss-lib/v2
 go 1.16
 
 require (
-	github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412
-	github.com/btcsuite/btcd v0.0.0-20190629003639-c26ffa870fd8
-	github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/decred/dcrd/dcrec/edwards/v2 v2.0.0
-	github.com/hashicorp/go-multierror v1.0.0
-	github.com/ipfs/go-log v0.0.1
-	github.com/mattn/go-colorable v0.1.2 // indirect
-	github.com/opentracing/opentracing-go v1.1.0 // indirect
-	github.com/otiai10/mint v1.2.4 // indirect
-	github.com/otiai10/primes v0.0.0-20180210170552-f6d2a1ba97c4
-	github.com/pkg/errors v0.8.1
-	github.com/stretchr/testify v1.3.0
-	golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44
-	golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7 // indirect
-	google.golang.org/protobuf v1.27.1
+	github.com/agl/ed25519 v0.0.0-20200225211852-fd4d107ace12
+	github.com/btcsuite/btcd v0.23.4
+	github.com/btcsuite/btcd/btcec/v2 v2.3.2
+	github.com/btcsuite/btcutil v1.0.2
+	github.com/decred/dcrd/dcrec/edwards/v2 v2.0.3
+	github.com/hashicorp/go-multierror v1.1.1
+	github.com/ipfs/go-log v1.0.5
+	github.com/otiai10/primes v0.0.0-20210501021515-f1b2be525a11
+	github.com/pkg/errors v0.9.1
+	github.com/stretchr/testify v1.8.4
+	golang.org/x/crypto v0.13.0
+	google.golang.org/protobuf v1.31.0
 )
 
 replace github.com/agl/ed25519 => github.com/binance-chain/edwards25519 v0.0.0-20200305024217-f36fc4b53d43
diff --git a/go.sum b/go.sum
index ab3fee3c..1c7500cd 100644
--- a/go.sum
+++ b/go.sum
@@ -1,86 +1,237 @@
-bou.ke/monkey v1.0.1 h1:zEMLInw9xvNakzUUPjfS4Ds6jYPqCFx3m7bRmG5NH2U=
-bou.ke/monkey v1.0.1/go.mod h1:FgHuK96Rv2Nlf+0u1OOVDpCMdsWyOFmeeketDHE7LIg=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/binance-chain/edwards25519 v0.0.0-20200305024217-f36fc4b53d43 h1:Vkf7rtHx8uHx8gDfkQaCdVfc+gfrF9v6sR6xJy7RXNg=
 github.com/binance-chain/edwards25519 v0.0.0-20200305024217-f36fc4b53d43/go.mod h1:TnVqVdGEK8b6erOMkcyYGWzCQMw7HEMCOw3BgFYCFWs=
-github.com/btcsuite/btcd v0.0.0-20190629003639-c26ffa870fd8 h1:mOg8/RgDSHTQ1R0IR+LMDuW4TDShPv+JzYHuR4GLoNA=
-github.com/btcsuite/btcd v0.0.0-20190629003639-c26ffa870fd8/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
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diff --git a/tss/curve.go b/tss/curve.go
index 02c91d7b..983a9361 100644
--- a/tss/curve.go
+++ b/tss/curve.go
@@ -11,7 +11,7 @@ import (
 	"errors"
 	"reflect"
 
-	s256k1 "github.com/btcsuite/btcd/btcec"
+	s256k1 "github.com/btcsuite/btcd/btcec/v2"
 	"github.com/decred/dcrd/dcrec/edwards/v2"
 )