diff --git a/mempool/mempool.go b/mempool/mempool.go
index e7cbb28d..d401f37f 100644
--- a/mempool/mempool.go
+++ b/mempool/mempool.go
@@ -8,7 +8,6 @@ import (
 
 	comettypes "github.com/cometbft/cometbft/types"
 	dbm "github.com/cosmos/cosmos-db"
-	"github.com/polymerdao/monomer"
 	"github.com/polymerdao/monomer/utils"
 )
 
@@ -39,13 +38,6 @@ func (p *Pool) Enqueue(userTxn comettypes.Tx) (err error) {
 	// Unfortunately, comet's DB interface doesn't support it.
 	// Moving to a different DB interface is left for future work.
 
-	// Attempt to adapt the Cosmos transaction to an Ethereum deposit transaction.
-	// If the adaptation succeeds, it indicates that the
-	// user transaction is a deposit transaction, which is not allowed in the pool.
-	if _, err := monomer.GetDepositTxs(userTxn); err == nil {
-		return errors.New("deposit txs are not allowed in the pool")
-	}
-
 	batch := p.db.NewBatch()
 	defer func() {
 		err = utils.WrapCloseErr(err, batch)
diff --git a/mempool/mempool_test.go b/mempool/mempool_test.go
index deadac62..e3bc57be 100644
--- a/mempool/mempool_test.go
+++ b/mempool/mempool_test.go
@@ -4,8 +4,6 @@ import (
 	"testing"
 
 	comettypes "github.com/cometbft/cometbft/types"
-	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/polymerdao/monomer"
 	"github.com/polymerdao/monomer/mempool"
 	"github.com/polymerdao/monomer/testutils"
 	"github.com/stretchr/testify/assert"
@@ -24,18 +22,6 @@ func TestMempool(t *testing.T) {
 		require.Error(t, err)
 	})
 
-	t.Run("deposit transaction", func(t *testing.T) {
-		l1AttributesTx, depositTx, _ := testutils.GenerateEthTxs(t)
-		l1AttributesTxBytes, err := l1AttributesTx.MarshalBinary()
-		require.NoError(t, err)
-		depositTxBytes, err := depositTx.MarshalBinary()
-		require.NoError(t, err)
-
-		cosmosTxs, err := monomer.AdaptPayloadTxsToCosmosTxs([]hexutil.Bytes{l1AttributesTxBytes, depositTxBytes})
-		require.NoError(t, err)
-		require.ErrorContains(t, pool.Enqueue(cosmosTxs[0]), "deposit txs are not allowed in the pool")
-	})
-
 	// enqueue multiple to empty
 	for i := byte(0); i < 3; i++ {
 		require.NoError(t, pool.Enqueue(comettypes.Tx([]byte{i})))
diff --git a/x/rollup/tx/helpers/ante.go b/x/rollup/tx/helpers/ante.go
index eb1a20ab..29f87cc4 100644
--- a/x/rollup/tx/helpers/ante.go
+++ b/x/rollup/tx/helpers/ante.go
@@ -1,6 +1,7 @@
 package helpers
 
 import (
+	"errors"
 	"fmt"
 
 	sdktypes "github.com/cosmos/cosmos-sdk/types"
@@ -43,6 +44,12 @@ func (a *AnteHandler) AnteHandle(
 		}
 		return newCtx, err
 	default: // Unfortunately, the Cosmos SDK does not export its default tx type.
+		for _, msg := range tx.GetMsgs() {
+			if _, ok := msg.(rolluptypes.DepositMsg); ok {
+				return ctx, errors.New("transaction contains deposit message")
+			}
+		}
+
 		newCtx, err := a.authAnteHandler(ctx, tx, simulate)
 		if err != nil {
 			return newCtx, fmt.Errorf("auth ante handle: %v", err)
diff --git a/x/rollup/types/deposit_msg.go b/x/rollup/types/deposit_msg.go
new file mode 100644
index 00000000..ef2effb9
--- /dev/null
+++ b/x/rollup/types/deposit_msg.go
@@ -0,0 +1,8 @@
+package types
+
+type DepositMsg interface {
+	isDeposit()
+}
+
+func (*MsgSetL1Attributes) isDeposit()  {}
+func (*MsgApplyUserDeposit) isDeposit() {}