diff --git a/packages/taiko-client/bindings/.githead b/packages/taiko-client/bindings/.githead
index 7ed2e70af5..006d1d38e3 100644
--- a/packages/taiko-client/bindings/.githead
+++ b/packages/taiko-client/bindings/.githead
@@ -1 +1 @@
-428dd49fb678ddeb5a942d4ed924ce760709a350
+703b062f4b2af3438cc3de940104e9b6cfcbebc1
diff --git a/packages/taiko-client/prover/proof_submitter/transaction/builder.go b/packages/taiko-client/prover/proof_submitter/transaction/builder.go
index f8313dd05a..913bf9fd9d 100644
--- a/packages/taiko-client/prover/proof_submitter/transaction/builder.go
+++ b/packages/taiko-client/prover/proof_submitter/transaction/builder.go
@@ -79,16 +79,40 @@ func (a *ProveBlockTxBuilder) Build(
 				return nil, err
 			}
 
-			if a.proverSetAddress != ZeroAddress {
-				if data, err = encoding.ProverSetABI.Pack("proveBlock", blockID.Uint64(), input); err != nil {
-					return nil, err
+			if meta.IsOntakeBlock() {
+				if a.proverSetAddress != ZeroAddress {
+					if data, err = encoding.ProverSetABI.Pack(
+						"proveBlocks",
+						[]uint64{blockID.Uint64()},
+						[][]byte{input},
+						[]byte{},
+					); err != nil {
+						return nil, err
+					}
+					to = a.proverSetAddress
+				} else {
+					if data, err = encoding.TaikoL1ABI.Pack(
+						"proveBlocks",
+						[]uint64{blockID.Uint64()},
+						[][]byte{input},
+						[]byte{},
+					); err != nil {
+						return nil, err
+					}
+					to = a.taikoL1Address
 				}
-				to = a.proverSetAddress
 			} else {
-				if data, err = encoding.TaikoL1ABI.Pack("proveBlock", blockID.Uint64(), input); err != nil {
-					return nil, err
+				if a.proverSetAddress != ZeroAddress {
+					if data, err = encoding.ProverSetABI.Pack("proveBlock", blockID.Uint64(), input); err != nil {
+						return nil, err
+					}
+					to = a.proverSetAddress
+				} else {
+					if data, err = encoding.TaikoL1ABI.Pack("proveBlock", blockID.Uint64(), input); err != nil {
+						return nil, err
+					}
+					to = a.taikoL1Address
 				}
-				to = a.taikoL1Address
 			}
 		} else {
 			if tier > encoding.TierGuardianMinorityID {