diff --git a/blssig/aggregation.go b/blssig/aggregation.go
index 615dcad4..08c41f05 100644
--- a/blssig/aggregation.go
+++ b/blssig/aggregation.go
@@ -10,9 +10,9 @@ import (
 	"github.com/filecoin-project/go-f3/internal/measurements"
 	"go.opentelemetry.io/otel/metric"
 
-	"github.com/drand/kyber"
-	"github.com/drand/kyber/sign"
-	"github.com/drand/kyber/sign/bdn"
+	"go.dedis.ch/kyber/v4"
+	"go.dedis.ch/kyber/v4/sign"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 )
 
 // Max size of the point cache.
@@ -121,7 +121,7 @@ func (v *Verifier) Aggregate(pubkeys []gpbft.PubKey) (_agg gpbft.Aggregate, _err
 		kPubkeys = append(kPubkeys, point.Clone())
 	}
 
-	mask, err := sign.NewMask(v.suite, kPubkeys, nil)
+	mask, err := sign.NewMask(kPubkeys, nil)
 	if err != nil {
 		return nil, fmt.Errorf("creating key mask: %w", err)
 	}
diff --git a/blssig/cache_test.go b/blssig/cache_test.go
index 91d564f7..e66fa437 100644
--- a/blssig/cache_test.go
+++ b/blssig/cache_test.go
@@ -4,8 +4,8 @@ import (
 	"runtime"
 	"testing"
 
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/sign/bdn"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"github.com/stretchr/testify/require"
 
 	"github.com/filecoin-project/go-f3/gpbft"
diff --git a/blssig/signer.go b/blssig/signer.go
index 9c3cf6f8..116c162a 100644
--- a/blssig/signer.go
+++ b/blssig/signer.go
@@ -5,9 +5,9 @@ import (
 	"context"
 	"errors"
 
-	"github.com/drand/kyber"
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/sign/bdn"
+	"go.dedis.ch/kyber/v4"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"github.com/filecoin-project/go-f3/gpbft"
 )
 
diff --git a/blssig/verifier.go b/blssig/verifier.go
index ad6c746d..1dece32f 100644
--- a/blssig/verifier.go
+++ b/blssig/verifier.go
@@ -7,10 +7,9 @@ import (
 	"runtime/debug"
 	"sync"
 
-	"github.com/drand/kyber"
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/pairing"
-	"github.com/drand/kyber/sign/bdn"
+	"go.dedis.ch/kyber/v4"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"go.opentelemetry.io/otel/metric"
 
 	"github.com/filecoin-project/go-f3/gpbft"
@@ -18,7 +17,6 @@ import (
 )
 
 type Verifier struct {
-	suite    pairing.Suite
 	scheme   *bdn.Scheme
 	keyGroup kyber.Group
 
@@ -29,7 +27,6 @@ type Verifier struct {
 func VerifierWithKeyOnG1() *Verifier {
 	suite := bls12381.NewBLS12381Suite()
 	return &Verifier{
-		suite:    suite,
 		scheme:   bdn.NewSchemeOnG2(suite),
 		keyGroup: suite.G1(),
 	}
diff --git a/blssig/verifier_test.go b/blssig/verifier_test.go
index bced0983..3622bef1 100644
--- a/blssig/verifier_test.go
+++ b/blssig/verifier_test.go
@@ -4,8 +4,8 @@ import (
 	"context"
 	"testing"
 
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/sign/bdn"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"github.com/stretchr/testify/require"
 )
 
diff --git a/go.mod b/go.mod
index f5987118..0e7dcfa6 100644
--- a/go.mod
+++ b/go.mod
@@ -4,8 +4,6 @@ go 1.22
 
 require (
 	github.com/Kubuxu/go-broadcast v0.0.0-20240621161059-1a8c90734cd6
-	github.com/drand/kyber v1.3.1
-	github.com/drand/kyber-bls12381 v0.3.1
 	github.com/filecoin-project/go-bitfield v0.2.4
 	github.com/filecoin-project/go-clock v0.1.0
 	github.com/filecoin-project/go-state-types v0.14.0
@@ -21,6 +19,7 @@ require (
 	github.com/stretchr/testify v1.9.0
 	github.com/urfave/cli/v2 v2.25.5
 	github.com/whyrusleeping/cbor-gen v0.1.1
+	go.dedis.ch/kyber/v4 v4.0.0-00010101000000-000000000000
 	go.opentelemetry.io/otel v1.28.0
 	go.opentelemetry.io/otel/metric v1.28.0
 	go.uber.org/multierr v1.11.0
@@ -144,4 +143,4 @@ require (
 	lukechampine.com/blake3 v1.2.1 // indirect
 )
 
-replace github.com/drand/kyber => github.com/Stebalien/kyber v1.3.2-0.20240827162216-c96a0e427578
+replace go.dedis.ch/kyber/v4 => github.com/Stebalien/kyber/v4 v4.0.0-pre2.0.20240905225310-9acfb6fcce75
diff --git a/go.sum b/go.sum
index 2c4cf26e..37dd68a0 100644
--- a/go.sum
+++ b/go.sum
@@ -10,8 +10,8 @@ git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGy
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Kubuxu/go-broadcast v0.0.0-20240621161059-1a8c90734cd6 h1:yh2/1fz3ajTaeKskSWxtSBNScdRZfQ/A5nyd9+64T6M=
 github.com/Kubuxu/go-broadcast v0.0.0-20240621161059-1a8c90734cd6/go.mod h1:5LOj/fF3Oc/cvJqzDiyfx4XwtBPRWUYEz+V+b13sH5U=
-github.com/Stebalien/kyber v1.3.2-0.20240827162216-c96a0e427578 h1:dx1hCR7KbG1HbehvPPRJKExoI9COfy8eMg7sCidKJEs=
-github.com/Stebalien/kyber v1.3.2-0.20240827162216-c96a0e427578/go.mod h1:f+mNHjiGT++CuueBrpeMhFNdKZAsy0tu03bKq9D5LPA=
+github.com/Stebalien/kyber/v4 v4.0.0-pre2.0.20240905225310-9acfb6fcce75 h1:0SoYW75b+HfVy/bdgP8/gMWBNuUkiHsDpFuovFdRJfo=
+github.com/Stebalien/kyber/v4 v4.0.0-pre2.0.20240905225310-9acfb6fcce75/go.mod h1:tg6jwKTYEjm94VxkFwiQy+ec9hoQvccIU989wNjXWVI=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
@@ -51,8 +51,6 @@ github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0/go.mod h1:v57UDF4pDQJcEfFUCRop3
 github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
-github.com/drand/kyber-bls12381 v0.3.1 h1:KWb8l/zYTP5yrvKTgvhOrk2eNPscbMiUOIeWBnmUxGo=
-github.com/drand/kyber-bls12381 v0.3.1/go.mod h1:H4y9bLPu7KZA/1efDg+jtJ7emKx+ro3PU7/jWUVt140=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/elastic/gosigar v0.12.0/go.mod h1:iXRIGg2tLnu7LBdpqzyQfGDEidKCfWcCMS0WKyPWoMs=
 github.com/elastic/gosigar v0.14.2 h1:Dg80n8cr90OZ7x+bAax/QjoW/XqTI11RmA79ZwIm9/4=
diff --git a/sim/signing/bls.go b/sim/signing/bls.go
index e9a3878d..54b7d673 100644
--- a/sim/signing/bls.go
+++ b/sim/signing/bls.go
@@ -5,9 +5,9 @@ import (
 	"errors"
 	"sync"
 
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/pairing"
-	"github.com/drand/kyber/sign/bdn"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/pairing"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"github.com/filecoin-project/go-f3/blssig"
 	"github.com/filecoin-project/go-f3/gpbft"
 )
diff --git a/test/signing_suite_test.go b/test/signing_suite_test.go
index 4b91f732..3af1e297 100644
--- a/test/signing_suite_test.go
+++ b/test/signing_suite_test.go
@@ -5,8 +5,8 @@ import (
 	"slices"
 	"testing"
 
-	bls12381 "github.com/drand/kyber-bls12381"
-	"github.com/drand/kyber/sign/bdn"
+	bls12381 "go.dedis.ch/kyber/v4/pairing/bls12381/kilic"
+	"go.dedis.ch/kyber/v4/sign/bdn"
 	"github.com/filecoin-project/go-f3/blssig"
 	"github.com/filecoin-project/go-f3/gpbft"
 	"github.com/filecoin-project/go-f3/sim/signing"