diff --git a/core/src/aggregator.rs b/core/src/aggregator.rs
index 2ecdb821..280cc847 100644
--- a/core/src/aggregator.rs
+++ b/core/src/aggregator.rs
@@ -12,8 +12,9 @@ use crate::{
     EVMAddress, UTXO,
 };
 use async_trait::async_trait;
-use bitcoin::hashes::Hash;
-use bitcoin::{address::NetworkUnchecked, Address, OutPoint, Transaction};
+use bitcoin::{hashes::Hash, Txid};
+use bitcoin::{address::NetworkUnchecked, Address, OutPoint};
+use bitcoincore_rpc::RawTx;
 use secp256k1::schnorr;
 
 /// Aggregator struct.
@@ -287,7 +288,7 @@ impl Aggregator {
         evm_address: EVMAddress,
         agg_nonce: MuSigAggNonce,
         partial_sigs: Vec<MuSigPartialSignature>,
-    ) -> Result<Transaction, BridgeError> {
+    ) -> Result<(String, Txid), BridgeError> {
         let agg_move_tx_final_sig = self.aggregate_move_partial_sigs(
             deposit_outpoint,
             &evm_address,
@@ -310,7 +311,8 @@ impl Aggregator {
         let move_tx_witness_elements = vec![move_tx_sig.serialize().to_vec()];
         handle_taproot_witness_new(&mut move_tx_handler, &move_tx_witness_elements, 0, Some(0))?;
 
-        Ok(move_tx_handler.tx)
+        let txid = move_tx_handler.tx.compute_txid();
+        Ok((move_tx_handler.tx.raw_hex(), txid))
     }
 }
 
@@ -352,7 +354,7 @@ impl AggregatorServer for Aggregator {
         evm_address: EVMAddress,
         agg_nonce: MuSigAggNonce,
         partial_sigs: Vec<MuSigPartialSignature>,
-    ) -> Result<Transaction, BridgeError> {
+    ) -> Result<(String, Txid), BridgeError> {
         self.aggregate_move_tx_sigs(
             deposit_outpoint,
             recovery_taproot_address,
diff --git a/core/src/traits/rpc.rs b/core/src/traits/rpc.rs
index 0585f892..79fd7db5 100644
--- a/core/src/traits/rpc.rs
+++ b/core/src/traits/rpc.rs
@@ -2,7 +2,7 @@ use crate::musig2::{MuSigAggNonce, MuSigPartialSignature, MuSigPubNonce};
 use crate::UTXO;
 use crate::{errors::BridgeError, EVMAddress};
 use bitcoin::address::NetworkUnchecked;
-use bitcoin::{Address, OutPoint, Transaction, TxOut, Txid};
+use bitcoin::{Address, OutPoint, TxOut, Txid};
 use jsonrpsee::proc_macros::rpc;
 use secp256k1::schnorr;
 
@@ -128,5 +128,5 @@ pub trait Aggregator {
         evm_address: EVMAddress,
         agg_nonce: MuSigAggNonce,
         partial_sigs: Vec<MuSigPartialSignature>,
-    ) -> Result<Transaction, BridgeError>;
+    ) -> Result<(String, Txid), BridgeError>;
 }
diff --git a/core/tests/common.rs b/core/tests/common.rs
index 995a8fd7..e8431822 100644
--- a/core/tests/common.rs
+++ b/core/tests/common.rs
@@ -1,6 +1,8 @@
 // //! # Common utilities for tests
 
+use bitcoin::consensus::encode::deserialize_hex;
 use bitcoin::OutPoint;
+use bitcoin::Transaction;
 use clementine_core::actor::Actor;
 use clementine_core::config::BridgeConfig;
 use clementine_core::database::common::Database;
@@ -159,7 +161,7 @@ pub async fn run_single_deposit(
 
     // aggreagte move_tx_partial_sigs
 
-    let move_tx = aggregator
+    let (move_tx, _) = aggregator
         .0
         .aggregate_move_tx_sigs_rpc(
             deposit_outpoint,
@@ -170,6 +172,7 @@ pub async fn run_single_deposit(
         )
         .await
         .unwrap();
+    let move_tx: Transaction = deserialize_hex(&move_tx).unwrap();
     // tracing::debug!("Move tx: {:#?}", move_tx);
     // tracing::debug!("Move tx_hex: {:?}", move_tx_handler.tx.raw_hex());
     tracing::debug!("Move tx weight: {:?}", move_tx.weight());
@@ -180,6 +183,8 @@ pub async fn run_single_deposit(
 
 #[cfg(test)]
 mod tests {
+    use bitcoin::consensus::encode::deserialize_hex;
+    use bitcoin::Transaction;
     use clementine_core::actor::Actor;
     use clementine_core::database::common::Database;
     use clementine_core::extended_rpc::ExtendedRpc;
@@ -432,7 +437,7 @@ mod tests {
 
         // aggreagte move_tx_partial_sigs
 
-        let _move_tx = aggregator
+        let (_move_tx, _) = aggregator
             .0
             .aggregate_move_tx_sigs_rpc(
                 deposit_outpoint,
@@ -444,7 +449,7 @@ mod tests {
             .await
             .unwrap();
 
-        let move_tx_retry = aggregator
+        let (move_tx_retry, _) = aggregator
             .0
             .aggregate_move_tx_sigs_rpc(
                 deposit_outpoint,
@@ -456,6 +461,7 @@ mod tests {
             .await
             .unwrap();
 
+        let move_tx_retry: Transaction = deserialize_hex(&move_tx_retry).unwrap();
         // tracing::debug!("Move tx: {:#?}", move_tx);
         // tracing::debug!("Move tx_hex: {:?}", move_tx_handler.tx.raw_hex());
         tracing::debug!("Move tx retry weight: {:?}", move_tx_retry.weight());