diff --git a/go.mod b/go.mod
index 616a92f..35873b6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@
 module github.com/trustbloc/sidetree-go
 
 require (
-	github.com/btcsuite/btcd v0.22.3
+	github.com/btcsuite/btcd/btcec/v2 v2.1.3
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
 	github.com/evanphx/json-patch v4.1.0+incompatible
 	github.com/multiformats/go-multibase v0.0.1
@@ -18,6 +18,7 @@ require (
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 // indirect
diff --git a/go.sum b/go.sum
index 7bebc5d..513036b 100644
--- a/go.sum
+++ b/go.sum
@@ -1,9 +1,7 @@
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/btcsuite/btcd v0.20.1-beta/go.mod h1:wVuoA8VJLEcwgqHBwHmzLRazpKxTv13Px/pDuV7OomQ=
-github.com/btcsuite/btcd v0.22.3 h1:kYNaWFvOw6xvqP0vR20RP1Zq1DVMBxEO8QN5d1/EfNg=
-github.com/btcsuite/btcd v0.22.3/go.mod h1:wqgTSL29+50LRkmOVknEdmt8ZojIzhuWvgu/iptuN7Y=
-github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1 h1:q0rUy8C/TYNBQS1+CGKw68tLOFYSNEs0TFnxxnS9+4U=
-github.com/btcsuite/btcd/chaincfg/chainhash v1.0.1/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc=
+github.com/btcsuite/btcd/btcec/v2 v2.1.3 h1:xM/n3yIhHAhHy04z4i43C8p4ehixJZMsnrVJkgl+MTE=
+github.com/btcsuite/btcd/btcec/v2 v2.1.3/go.mod h1:ctjw4H1kknNJmRN4iP1R7bTQ+v3GJkZBd6mui8ZsAZE=
 github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f/go.mod h1:TdznJufoqS23FtqVCzL0ZqgP5MqXbb4fg/WgDys70nA=
 github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d/go.mod h1:+5NJ2+qvTyV9exUAL/rxXi3DcLg2Ts+ymUAY5y4NvMg=
 github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce h1:YtWJF7RHm2pYCvA5t0RPmAaLUhREsKuKd+SLhxFbFeQ=
@@ -18,6 +16,9 @@ github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 h1:YLtO71vCjJRCBcrPMtQ9nqBsqpA1m5sE92cU+pd5Mcc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1/go.mod h1:hyedUtir6IdtD/7lIxGeCxkaw7y45JueMRL4DIyJDKs=
 github.com/evanphx/json-patch v4.1.0+incompatible h1:K1MDoo4AZ4wU0GIU/fPmtZg7VpzLjCxu+UwBD1FvwOc=
 github.com/evanphx/json-patch v4.1.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
diff --git a/pkg/jwsutil/jwk.go b/pkg/jwsutil/jwk.go
index 4a2f114..6d11511 100644
--- a/pkg/jwsutil/jwk.go
+++ b/pkg/jwsutil/jwk.go
@@ -16,7 +16,7 @@ import (
 	"math/big"
 	"strings"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/square/go-jose/v3"
 	"github.com/square/go-jose/v3/json"
 	"golang.org/x/crypto/ed25519"
@@ -47,12 +47,13 @@ func (j *JWK) PublicKeyBytes() ([]byte, error) {
 			ecPubKey = &j.Key.(*ecdsa.PrivateKey).PublicKey
 		}
 
-		pubKey := &btcec.PublicKey{
-			Curve: btcec.S256(),
-			X:     ecPubKey.X,
-			Y:     ecPubKey.Y,
-		}
+		x := &btcec.FieldVal{}
+		x.SetByteSlice(ecPubKey.X.Bytes())
+
+		y := &btcec.FieldVal{}
+		y.SetByteSlice(ecPubKey.Y.Bytes())
 
+		pubKey := btcec.NewPublicKey(x, y)
 		return pubKey.SerializeCompressed(), nil
 	}
 
diff --git a/pkg/jwsutil/jwk_test.go b/pkg/jwsutil/jwk_test.go
index dc23861..55caa52 100644
--- a/pkg/jwsutil/jwk_test.go
+++ b/pkg/jwsutil/jwk_test.go
@@ -12,7 +12,7 @@ import (
 	"crypto/rand"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/square/go-jose/v3"
 	"github.com/square/go-jose/v3/json"
 	"github.com/stretchr/testify/require"
diff --git a/pkg/jwsutil/signature.go b/pkg/jwsutil/signature.go
index 6a3b6a9..3cf971e 100644
--- a/pkg/jwsutil/signature.go
+++ b/pkg/jwsutil/signature.go
@@ -16,7 +16,7 @@ import (
 	"fmt"
 	"math/big"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 
 	"github.com/trustbloc/sidetree-go/pkg/jws"
 )
diff --git a/pkg/jwsutil/signature_test.go b/pkg/jwsutil/signature_test.go
index 5677da5..a7bb237 100644
--- a/pkg/jwsutil/signature_test.go
+++ b/pkg/jwsutil/signature_test.go
@@ -16,7 +16,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	gojose "github.com/square/go-jose/v3"
 	"github.com/square/go-jose/v3/json"
 	"github.com/stretchr/testify/require"
diff --git a/pkg/util/ecsigner/signer.go b/pkg/util/ecsigner/signer.go
index 7de90b5..76d5abc 100644
--- a/pkg/util/ecsigner/signer.go
+++ b/pkg/util/ecsigner/signer.go
@@ -13,7 +13,7 @@ import (
 	"crypto/rand"
 	"errors"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 
 	"github.com/trustbloc/sidetree-go/pkg/jws"
 )
diff --git a/pkg/util/ecsigner/signer_test.go b/pkg/util/ecsigner/signer_test.go
index 3cab753..af77a23 100644
--- a/pkg/util/ecsigner/signer_test.go
+++ b/pkg/util/ecsigner/signer_test.go
@@ -12,7 +12,7 @@ import (
 	"crypto/rand"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/stretchr/testify/require"
 )
 
diff --git a/pkg/util/pubkey/jwk.go b/pkg/util/pubkey/jwk.go
index 9a1231c..5f63b4b 100644
--- a/pkg/util/pubkey/jwk.go
+++ b/pkg/util/pubkey/jwk.go
@@ -13,7 +13,7 @@ import (
 	"fmt"
 	"reflect"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	gojose "github.com/square/go-jose/v3"
 	"github.com/square/go-jose/v3/json"
 
diff --git a/pkg/util/pubkey/jwk_test.go b/pkg/util/pubkey/jwk_test.go
index 8846402..bc85ff0 100644
--- a/pkg/util/pubkey/jwk_test.go
+++ b/pkg/util/pubkey/jwk_test.go
@@ -13,7 +13,7 @@ import (
 	"crypto/rand"
 	"testing"
 
-	"github.com/btcsuite/btcd/btcec"
+	"github.com/btcsuite/btcd/btcec/v2"
 	"github.com/stretchr/testify/require"
 )