diff --git a/x/opchild/keeper/deposit.go b/x/opchild/keeper/deposit.go
index bb79e29..7aecb73 100644
--- a/x/opchild/keeper/deposit.go
+++ b/x/opchild/keeper/deposit.go
@@ -58,11 +58,14 @@ func (k Keeper) handleBridgeHook(ctx sdk.Context, data []byte, hookMaxGas uint64
 			return
 		}
 
-		_, err = handler(cacheCtx, msg)
+		res, err := handler(cacheCtx, msg)
 		if err != nil {
 			reason = fmt.Sprintf("Failed to execute Msg: %s", err)
 			return
 		}
+
+		// emit events
+		cacheCtx.EventManager().EmitEvents(res.GetEvents())
 	}
 
 	commit()
diff --git a/x/opchild/keeper/deposit_test.go b/x/opchild/keeper/deposit_test.go
new file mode 100644
index 0000000..8946743
--- /dev/null
+++ b/x/opchild/keeper/deposit_test.go
@@ -0,0 +1,65 @@
+package keeper_test
+
+import (
+	"encoding/hex"
+	"testing"
+
+	"cosmossdk.io/math"
+	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/initia-labs/OPinit/x/opchild/keeper"
+	"github.com/initia-labs/OPinit/x/opchild/types"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/crypto/sha3"
+)
+
+func Test_MsgServer_Deposit_HookEvents(t *testing.T) {
+	ctx, input := createDefaultTestInput(t)
+	ms := keeper.NewMsgServerImpl(&input.OPChildKeeper)
+
+	bz := sha3.Sum256([]byte("test_token"))
+	denom := "l2/" + hex.EncodeToString(bz[:])
+
+	require.Equal(t, math.ZeroInt(), input.BankKeeper.GetBalance(ctx, addrs[1], denom).Amount)
+
+	// empty deposit to create account
+	priv, _, addr := keyPubAddr()
+	msg := types.NewMsgFinalizeTokenDeposit(addrsStr[0], addrsStr[1], addr.String(), sdk.NewCoin(denom, math.ZeroInt()), 1, 1, "test_token", nil)
+	_, err := ms.FinalizeTokenDeposit(ctx, msg)
+	require.NoError(t, err)
+
+	// create hook data
+	acc := input.AccountKeeper.GetAccount(ctx, addr)
+	require.NotNil(t, acc)
+	privs, accNums, accSeqs := []cryptotypes.PrivKey{priv}, []uint64{acc.GetAccountNumber()}, []uint64{0}
+	from, _ := input.AccountKeeper.AddressCodec().BytesToString(addr)
+	to, _ := input.AccountKeeper.AddressCodec().BytesToString(addrs[2])
+
+	signedTxBz, err := input.EncodingConfig.TxConfig.TxEncoder()(generateTestTx(
+		t, input,
+		[]sdk.Msg{
+			types.NewMsgInitiateTokenWithdrawal(from, to, sdk.NewCoin(denom, math.NewInt(50))),
+		},
+		privs, accNums, accSeqs, sdk.UnwrapSDKContext(ctx).ChainID(),
+	))
+	require.NoError(t, err)
+
+	// valid deposit
+	ctx = sdk.UnwrapSDKContext(ctx).WithEventManager(sdk.NewEventManager())
+	msg = types.NewMsgFinalizeTokenDeposit(addrsStr[0], addrsStr[1], addr.String(), sdk.NewCoin(denom, math.NewInt(100)), 2, 1, "test_token", signedTxBz)
+	_, err = ms.FinalizeTokenDeposit(ctx, msg)
+	require.NoError(t, err)
+
+	withdrawalEventFound := false
+	for _, event := range sdk.UnwrapSDKContext(ctx).EventManager().Events() {
+		if event.Type == types.EventTypeInitiateTokenWithdrawal {
+			withdrawalEventFound = true
+		} else if event.Type == types.EventTypeFinalizeTokenDeposit {
+			require.Equal(t, event.Attributes[len(event.Attributes)-1].Key, types.AttributeKeySuccess)
+			require.Equal(t, event.Attributes[len(event.Attributes)-1].Value, "true")
+		}
+	}
+
+	// but no event was emitted by hooks
+	require.True(t, withdrawalEventFound)
+}
diff --git a/x/ophost/types/error.go b/x/ophost/types/error.go
index 6b6fbf9..117d6d3 100644
--- a/x/ophost/types/error.go
+++ b/x/ophost/types/error.go
@@ -22,4 +22,5 @@ var (
 	ErrInvalidChallengerUpdate    = errorsmod.Register(ModuleName, 15, "invalid challenger update")
 	ErrEmptyBatchBytes            = errorsmod.Register(ModuleName, 16, "empty batch bytes")
 	ErrBridgeNotFound             = errorsmod.Register(ModuleName, 17, "bridge not found")
+	ErrInvalidData                = errorsmod.Register(ModuleName, 18, "invalid data")
 )
diff --git a/x/ophost/types/tx.go b/x/ophost/types/tx.go
index 92d0006..6fe82a8 100644
--- a/x/ophost/types/tx.go
+++ b/x/ophost/types/tx.go
@@ -22,6 +22,7 @@ var (
 
 const (
 	MaxMetadataLength = 1024 * 5
+	MaxDataLength     = 1024 * 10
 )
 
 /* MsgRecordBatch */
@@ -195,6 +196,10 @@ func (msg MsgInitiateTokenDeposit) Validate(ac address.Codec) error {
 		return ErrInvalidBridgeId
 	}
 
+	if len(msg.Data) > MaxDataLength {
+		return ErrInvalidData.Wrapf("data length exceeds %d", MaxDataLength)
+	}
+
 	return nil
 }