diff --git a/app/app.go b/app/app.go
index d69be687..1dea8f41 100644
--- a/app/app.go
+++ b/app/app.go
@@ -15,6 +15,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
+	ethereumCrypto "github.com/ethereum/go-ethereum/crypto"
 	"github.com/libp2p/go-libp2p/core/crypto"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/viper"
@@ -114,6 +115,8 @@ func Run() error {
 	}
 	blockstore := store.NewBlockStore(db)
 	keyshareStore := keyshare.NewECDSAKeyshareStore(configuration.RelayerConfig.MpcConfig.KeysharePath)
+	keyshare, err := keyshareStore.GetKeyshare()
+	panicOnError(err)
 
 	mp, err := observability.InitMetricProvider(context.Background(), configuration.RelayerConfig.OpenTelemetryCollectorURL)
 	panicOnError(err)
@@ -290,6 +293,7 @@ func Run() error {
 
 					lifiMh := evmMessage.NewLifiEscrowMessageHandler(
 						*c.GeneralChainConfig.Id,
+						ethereumCrypto.PubkeyToAddress(*keyshare.Key.ECDSAPub.ToBtcecPubKey().ToECDSA()),
 						lifiOutputSettlers,
 						coordinator,
 						host,
diff --git a/chains/evm/calls/consts/lifi.go b/chains/evm/calls/consts/lifi.go
index 45c7fc68..de7abf34 100644
--- a/chains/evm/calls/consts/lifi.go
+++ b/chains/evm/calls/consts/lifi.go
@@ -11,7 +11,6 @@ var LifiABI, _ = abi.JSON(strings.NewReader(`[{
   "type": "function",
   "stateMutability": "nonpayable",
   "inputs": [
-    {"name": "fillDeadline", "type": "uint32"},
     {"name": "orderId", "type": "bytes32"},
     {
       "name": "outputs",
@@ -27,7 +26,8 @@ var LifiABI, _ = abi.JSON(strings.NewReader(`[{
         {"name": "context", "type": "bytes"}
       ]
     },
-    {"name": "proposedSolver", "type": "bytes32"}
+    {"name": "fillDeadline", "type": "uint48"},
+    {"name": "fillerData", "type": "bytes"}
   ],
   "outputs": []
 }]`))
diff --git a/chains/evm/message/lifiEscrow.go b/chains/evm/message/lifiEscrow.go
index e4ddb015..d0299d86 100644
--- a/chains/evm/message/lifiEscrow.go
+++ b/chains/evm/message/lifiEscrow.go
@@ -53,6 +53,7 @@ type LifiEscrowMessageHandler struct {
 
 func NewLifiEscrowMessageHandler(
 	chainID uint64,
+	mpcAddress common.Address,
 	lifiAddresses map[uint64]common.Address,
 	coordinator Coordinator,
 	host host.Host,
@@ -70,6 +71,7 @@ func NewLifiEscrowMessageHandler(
 		lifiAddresses:       lifiAddresses,
 		coordinator:         coordinator,
 		host:                host,
+		mpcAddress:          mpcAddress,
 		comm:                comm,
 		fetcher:             fetcher,
 		confirmationWatcher: confirmationWatcher,
@@ -220,10 +222,10 @@ func (h *LifiEscrowMessageHandler) calldata(order *lifi.LifiOrder) ([]byte, erro
 
 	return consts.LifiABI.Pack(
 		"fillOrderOutputs",
-		order.Order.FillDeadline,
 		common.HexToHash(order.Meta.OnChainOrderID),
 		outputs,
-		common.HexToHash(h.mpcAddress.Hex()))
+		new(big.Int).SetUint64(uint64(order.Order.FillDeadline)),
+		common.HexToHash(h.mpcAddress.Hex()).Bytes())
 }
 
 // verifyOrder verifies order based on these instructions https://docs.catalyst.exchange/solver/orderflow/#order-validation
diff --git a/chains/evm/message/lifiEscrow_test.go b/chains/evm/message/lifiEscrow_test.go
index f5795db5..bdcf2810 100644
--- a/chains/evm/message/lifiEscrow_test.go
+++ b/chains/evm/message/lifiEscrow_test.go
@@ -101,6 +101,7 @@ func (s *LifiEscrowMessageHandlerTestSuite) SetupTest() {
 
 	s.handler = message.NewLifiEscrowMessageHandler(
 		8453,
+		common.Address{},
 		lifiAddresses,
 		s.mockCoordinator,
 		s.mockHost,