diff --git a/consensus/ibft/consensus_backend.go b/consensus/ibft/consensus_backend.go
index 46cd875643..1593e556cc 100644
--- a/consensus/ibft/consensus_backend.go
+++ b/consensus/ibft/consensus_backend.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/0xPolygon/go-ibft/messages"
 	"github.com/0xPolygon/polygon-edge/consensus"
 	"github.com/0xPolygon/polygon-edge/state"
 	"github.com/0xPolygon/polygon-edge/types"
@@ -42,7 +43,10 @@ func (i *backendIBFT) BuildProposal(blockNumber uint64) []byte {
 	return block.MarshalRLP()
 }
 
-func (i *backendIBFT) InsertBlock(proposal []byte, committedSeals [][]byte) {
+func (i *backendIBFT) InsertBlock(
+	proposal []byte,
+	committedSeals []*messages.CommittedSeal,
+) {
 	newBlock := &types.Block{}
 	if err := newBlock.UnmarshalRLP(proposal); err != nil {
 		i.logger.Error("cannot unmarshal proposal", "err", err)
@@ -50,8 +54,13 @@ func (i *backendIBFT) InsertBlock(proposal []byte, committedSeals [][]byte) {
 		return
 	}
 
+	seals := make([][]byte, len(committedSeals))
+	for idx := range committedSeals {
+		seals[idx] = committedSeals[idx].Signature
+	}
+
 	// Push the committed seals to the header
-	header, err := writeCommittedSeals(newBlock.Header, committedSeals)
+	header, err := writeCommittedSeals(newBlock.Header, seals)
 	if err != nil {
 		i.logger.Error("cannot write committed seals", "err", err)
 
diff --git a/consensus/ibft/verifier.go b/consensus/ibft/verifier.go
index 20b50cd388..c00e69a7be 100644
--- a/consensus/ibft/verifier.go
+++ b/consensus/ibft/verifier.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 
+	"github.com/0xPolygon/go-ibft/messages"
 	protoIBFT "github.com/0xPolygon/go-ibft/messages/proto"
 	"github.com/0xPolygon/polygon-edge/types"
 )
@@ -117,17 +118,26 @@ func (i *backendIBFT) IsValidProposalHash(proposal, hash []byte) bool {
 	return bytes.Equal(blockHash, hash)
 }
 
-func (i *backendIBFT) IsValidCommittedSeal(proposalHash, seal []byte) bool {
+func (i *backendIBFT) IsValidCommittedSeal(
+	proposalHash []byte,
+	committedSeal *messages.CommittedSeal,
+) bool {
 	// seal was generated based on the proposal hash
-	validator, err := ecrecoverImpl(seal, wrapCommitHash(proposalHash))
+	signer, err := ecrecoverImpl(committedSeal.Signature, wrapCommitHash(proposalHash))
 	if err != nil {
 		i.logger.Error("unable to recover seal", "err", err)
 
 		return false
 	}
 
-	if !i.activeValidatorSet.Includes(validator) {
-		i.logger.Error("seal generated by validator not in the active set", "validator", validator.String())
+	if signer != types.BytesToAddress(committedSeal.Signer) {
+		i.logger.Error("mismatch between signer and message sender", "err", err)
+
+		return false
+	}
+
+	if !i.activeValidatorSet.Includes(signer) {
+		i.logger.Error("seal generated by validator not in the active set", "validator", signer.String())
 
 		return false
 	}
diff --git a/go.mod b/go.mod
index 503065f996..b59421051a 100644
--- a/go.mod
+++ b/go.mod
@@ -60,7 +60,7 @@ require (
 	lukechampine.com/blake3 v1.1.7 // indirect
 )
 
-require github.com/0xPolygon/go-ibft v0.0.0-20220729102524-0f95a9c3a08c
+require github.com/0xPolygon/go-ibft v0.0.0-20220810095021-e43142f8d267
 
 require (
 	cloud.google.com/go v0.102.0 // indirect
diff --git a/go.sum b/go.sum
index 6df35482b4..3ea431f88f 100644
--- a/go.sum
+++ b/go.sum
@@ -69,6 +69,8 @@ dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/0xPolygon/go-ibft v0.0.0-20220729102524-0f95a9c3a08c h1:y9Fw+byHhcrV8378z20d2WlyIoHOZiZbPIVAQ9VDuyw=
 github.com/0xPolygon/go-ibft v0.0.0-20220729102524-0f95a9c3a08c/go.mod h1:pXhBaK+CcHr3eUAWynKyHGTxgDwpJ3O1tvbGthN+pN4=
+github.com/0xPolygon/go-ibft v0.0.0-20220810095021-e43142f8d267 h1:+mFLx9IKW16fOcTKjZjkom3TGnihOuPwYAz2c6+UUWQ=
+github.com/0xPolygon/go-ibft v0.0.0-20220810095021-e43142f8d267/go.mod h1:QPrugDXgsCFy2FeCJ0YokPrnyi1GoLhDj/PLO1dSoNY=
 github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
diff --git a/vendor/github.com/0xPolygon/go-ibft/core/backend.go b/vendor/github.com/0xPolygon/go-ibft/core/backend.go
index 75bd355574..258b12084c 100644
--- a/vendor/github.com/0xPolygon/go-ibft/core/backend.go
+++ b/vendor/github.com/0xPolygon/go-ibft/core/backend.go
@@ -1,6 +1,7 @@
 package core
 
 import (
+	"github.com/0xPolygon/go-ibft/messages"
 	"github.com/0xPolygon/go-ibft/messages/proto"
 )
 
@@ -42,7 +43,7 @@ type Verifier interface {
 	IsValidProposalHash(proposal, hash []byte) bool
 
 	// IsValidCommittedSeal checks if the seal for the proposal is valid
-	IsValidCommittedSeal(proposal, seal []byte) bool
+	IsValidCommittedSeal(proposal []byte, committedSeal *messages.CommittedSeal) bool
 }
 
 // Backend defines an interface all backend implementations
@@ -55,7 +56,7 @@ type Backend interface {
 	BuildProposal(blockNumber uint64) []byte
 
 	// InsertBlock inserts a proposal with the specified committed seals
-	InsertBlock(proposal []byte, committedSeals [][]byte)
+	InsertBlock(proposal []byte, committedSeals []*messages.CommittedSeal)
 
 	// ID returns the validator's ID
 	ID() []byte
diff --git a/vendor/github.com/0xPolygon/go-ibft/core/ibft.go b/vendor/github.com/0xPolygon/go-ibft/core/ibft.go
index 958fd3312a..69778601cb 100644
--- a/vendor/github.com/0xPolygon/go-ibft/core/ibft.go
+++ b/vendor/github.com/0xPolygon/go-ibft/core/ibft.go
@@ -4,11 +4,12 @@ import (
 	"bytes"
 	"context"
 	"errors"
-	"github.com/0xPolygon/go-ibft/messages"
-	"github.com/0xPolygon/go-ibft/messages/proto"
 	"math"
 	"sync"
 	"time"
+
+	"github.com/0xPolygon/go-ibft/messages"
+	"github.com/0xPolygon/go-ibft/messages/proto"
 )
 
 type Logger interface {
@@ -109,7 +110,7 @@ func NewIBFT(
 				Height: 0,
 				Round:  0,
 			},
-			seals:        make([][]byte, 0),
+			seals:        make([]*messages.CommittedSeal, 0),
 			roundStarted: false,
 			name:         newRound,
 		},
diff --git a/vendor/github.com/0xPolygon/go-ibft/core/state.go b/vendor/github.com/0xPolygon/go-ibft/core/state.go
index 70544e1993..2c773dd8ee 100644
--- a/vendor/github.com/0xPolygon/go-ibft/core/state.go
+++ b/vendor/github.com/0xPolygon/go-ibft/core/state.go
@@ -1,9 +1,10 @@
 package core
 
 import (
+	"sync"
+
 	"github.com/0xPolygon/go-ibft/messages"
 	"github.com/0xPolygon/go-ibft/messages/proto"
-	"sync"
 )
 
 type stateType uint8
@@ -47,7 +48,7 @@ type state struct {
 	proposalMessage *proto.Message
 
 	//	validated commit seals
-	seals [][]byte
+	seals []*messages.CommittedSeal
 
 	//	flags for different states
 	roundStarted bool
@@ -142,7 +143,7 @@ func (s *state) getProposal() []byte {
 	return nil
 }
 
-func (s *state) getCommittedSeals() [][]byte {
+func (s *state) getCommittedSeals() []*messages.CommittedSeal {
 	s.RLock()
 	defer s.RUnlock()
 
@@ -177,7 +178,7 @@ func (s *state) setView(view *proto.View) {
 	s.view = view
 }
 
-func (s *state) setCommittedSeals(seals [][]byte) {
+func (s *state) setCommittedSeals(seals []*messages.CommittedSeal) {
 	s.Lock()
 	defer s.Unlock()
 
diff --git a/vendor/github.com/0xPolygon/go-ibft/messages/helpers.go b/vendor/github.com/0xPolygon/go-ibft/messages/helpers.go
index 51485949b1..cc11693f4b 100644
--- a/vendor/github.com/0xPolygon/go-ibft/messages/helpers.go
+++ b/vendor/github.com/0xPolygon/go-ibft/messages/helpers.go
@@ -2,12 +2,18 @@ package messages
 
 import (
 	"bytes"
+
 	"github.com/0xPolygon/go-ibft/messages/proto"
 )
 
+type CommittedSeal struct {
+	Signer    []byte
+	Signature []byte
+}
+
 // ExtractCommittedSeals extracts the committed seals from the passed in messages
-func ExtractCommittedSeals(commitMessages []*proto.Message) [][]byte {
-	committedSeals := make([][]byte, 0)
+func ExtractCommittedSeals(commitMessages []*proto.Message) []*CommittedSeal {
+	committedSeals := make([]*CommittedSeal, 0)
 
 	for _, commitMessage := range commitMessages {
 		if commitMessage.Type != proto.MessageType_COMMIT {
@@ -21,10 +27,13 @@ func ExtractCommittedSeals(commitMessages []*proto.Message) [][]byte {
 }
 
 // ExtractCommittedSeal extracts the committed seal from the passed in message
-func ExtractCommittedSeal(commitMessage *proto.Message) []byte {
+func ExtractCommittedSeal(commitMessage *proto.Message) *CommittedSeal {
 	commitData, _ := commitMessage.Payload.(*proto.Message_CommitData)
 
-	return commitData.CommitData.CommittedSeal
+	return &CommittedSeal{
+		Signer:    commitMessage.From,
+		Signature: commitData.CommitData.CommittedSeal,
+	}
 }
 
 // ExtractCommitHash extracts the commit proposal hash from the passed in message
diff --git a/vendor/modules.txt b/vendor/modules.txt
index c1c8a7ddc8..9b14585fd7 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -11,7 +11,7 @@ cloud.google.com/go/iam
 ## explicit; go 1.16
 cloud.google.com/go/secretmanager/apiv1
 cloud.google.com/go/secretmanager/internal
-# github.com/0xPolygon/go-ibft v0.0.0-20220729102524-0f95a9c3a08c
+# github.com/0xPolygon/go-ibft v0.0.0-20220810095021-e43142f8d267
 ## explicit; go 1.17
 github.com/0xPolygon/go-ibft/core
 github.com/0xPolygon/go-ibft/messages