diff --git a/bindings/encoding/input.go b/bindings/encoding/input.go
index ef7e73345..486f70af6 100644
--- a/bindings/encoding/input.go
+++ b/bindings/encoding/input.go
@@ -168,6 +168,10 @@ var (
 			Name: "metaHash",
 			Type: "bytes32",
 		},
+		{
+			Name: "parentMetaHash",
+			Type: "bytes32",
+		},
 		{
 			Name: "tierFees",
 			Type: "tuple[]",
@@ -246,6 +250,7 @@ var (
 		{Name: "taikoAddress", Type: addressType},
 		{Name: "assignmentHookAddress", Type: addressType},
 		{Name: "metaHash", Type: bytes32Type},
+		{Name: "parentMetaHash", Type: bytes32Type},
 		{Name: "blobHash", Type: bytes32Type},
 		{Name: "assignment.feeToken", Type: addressType},
 		{Name: "assignment.expiry", Type: uint64Type},
@@ -335,6 +340,7 @@ func EncodeProverAssignmentPayload(
 		taikoAddress,
 		assignmentHookAddress,
 		common.Hash{},
+		common.Hash{},
 		txListHash,
 		feeToken,
 		expiry,
diff --git a/bindings/encoding/struct.go b/bindings/encoding/struct.go
index f882ee1fd..0da33ffb5 100644
--- a/bindings/encoding/struct.go
+++ b/bindings/encoding/struct.go
@@ -65,13 +65,14 @@ type TierFee struct {
 
 // ProverAssignment should be same with TaikoData.ProverAssignment.
 type ProverAssignment struct {
-	FeeToken      common.Address
-	Expiry        uint64
-	MaxBlockId    uint64 // nolint: revive,stylecheck
-	MaxProposedIn uint64
-	MetaHash      [32]byte
-	TierFees      []TierFee
-	Signature     []byte
+	FeeToken       common.Address
+	Expiry         uint64
+	MaxBlockId     uint64 // nolint: revive,stylecheck
+	MaxProposedIn  uint64
+	MetaHash       [32]byte
+	ParentMetaHash [32]byte
+	TierFees       []TierFee
+	Signature      []byte
 }
 
 // AssignmentHookInput should be same as AssignmentHook.Input