diff --git a/crates/mempool/src/mempool.rs b/crates/mempool/src/mempool.rs
index b2fc747b8d..8732b25274 100644
--- a/crates/mempool/src/mempool.rs
+++ b/crates/mempool/src/mempool.rs
@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 
 use starknet_api::core::{ContractAddress, Nonce};
-use starknet_api::transaction::{Tip, TransactionHash};
+use starknet_api::transaction::{ResourceBoundsMapping, Tip, TransactionHash};
 use starknet_mempool_types::errors::MempoolError;
 use starknet_mempool_types::mempool_types::{
     Account,
@@ -111,7 +111,7 @@ impl Mempool {
 
             if self.tx_queue.get_nonce(address).is_none() {
                 if let Some(tx) = self.tx_pool.get_by_address_and_nonce(address, next_nonce) {
-                    self.tx_queue.insert(*tx);
+                    self.tx_queue.insert(tx.clone());
                 }
             }
 
@@ -143,7 +143,7 @@ impl Mempool {
         if self.tx_queue.get_nonce(sender_address).is_none() {
             if let Some(tx_reference) = self.tx_pool.get_by_address_and_nonce(sender_address, nonce)
             {
-                self.tx_queue.insert(*tx_reference);
+                self.tx_queue.insert(tx_reference.clone());
             }
         }
 
@@ -198,7 +198,7 @@ impl Mempool {
             if let Some(next_tx_reference) =
                 self.tx_pool.get_next_eligible_tx(current_account_state)?
             {
-                self.tx_queue.insert(*next_tx_reference);
+                self.tx_queue.insert(next_tx_reference.clone());
             }
         }
 
@@ -215,12 +215,13 @@ impl Mempool {
 /// execution fields).
 /// TODO(Mohammad): rename this struct to `ThinTransaction` once that name
 /// becomes available, to better reflect its purpose and usage.
-#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+#[derive(Clone, Debug, Default, Eq, PartialEq)]
 pub struct TransactionReference {
     pub sender_address: ContractAddress,
     pub nonce: Nonce,
     pub tx_hash: TransactionHash,
     pub tip: Tip,
+    pub resource_bounds: ResourceBoundsMapping,
 }
 
 impl TransactionReference {
@@ -230,6 +231,8 @@ impl TransactionReference {
             nonce: tx.nonce,
             tx_hash: tx.tx_hash,
             tip: tx.tip,
+            // TODO(Mohammad): add resource bounds to the transaction.
+            resource_bounds: ResourceBoundsMapping::default(),
         }
     }
 }
diff --git a/crates/mempool/src/mempool_test.rs b/crates/mempool/src/mempool_test.rs
index 6343b02e12..045e72076d 100644
--- a/crates/mempool/src/mempool_test.rs
+++ b/crates/mempool/src/mempool_test.rs
@@ -350,7 +350,7 @@ fn test_get_txs_with_holes_single_account() {
 
     let pool_txs = [input_nonce_1.tx];
     let queue_txs = [];
-    let mut mempool: Mempool = MempoolContent::new(pool_txs.clone(), queue_txs).into();
+    let mut mempool: Mempool = MempoolContent::new(pool_txs.clone(), queue_txs.clone()).into();
 
     // Test.
     let txs = mempool.get_txs(1).unwrap();
@@ -441,7 +441,7 @@ fn test_add_tx_lower_than_queued_nonce() {
         add_tx_input!(tx_hash: 2, sender_address: "0x0", tx_nonce: 0_u8, account_nonce: 0_u8);
 
     let queue_txs = [TransactionReference::new(&valid_input.tx)];
-    let expected_mempool_content = MempoolContent::with_queue(queue_txs);
+    let expected_mempool_content = MempoolContent::with_queue(queue_txs.clone());
     let pool_txs = [valid_input.tx];
     let mut mempool: Mempool = MempoolContent::new(pool_txs, queue_txs).into();
 
@@ -594,7 +594,7 @@ fn test_commit_block_includes_all_txs() {
     let queue_txs = [&tx_address0_nonce4, &tx_address1_nonce3, &tx_address2_nonce1]
         .map(TransactionReference::new);
     let pool_txs = [tx_address0_nonce4, tx_address0_nonce5, tx_address1_nonce3, tx_address2_nonce1];
-    let mut mempool: Mempool = MempoolContent::new(pool_txs.clone(), queue_txs).into();
+    let mut mempool: Mempool = MempoolContent::new(pool_txs.clone(), queue_txs.clone()).into();
 
     // Test.
     let state_changes = HashMap::from([
diff --git a/crates/mempool/src/transaction_queue.rs b/crates/mempool/src/transaction_queue.rs
index 72ec458929..4863ea9ac8 100644
--- a/crates/mempool/src/transaction_queue.rs
+++ b/crates/mempool/src/transaction_queue.rs
@@ -22,7 +22,7 @@ impl TransactionQueue {
     // assert.
     pub fn insert(&mut self, tx: TransactionReference) {
         assert_eq!(
-            self.address_to_tx.insert(tx.sender_address, tx),
+            self.address_to_tx.insert(tx.sender_address, tx.clone()),
             None,
             "Only a single transaction from the same contract class can be in the mempool at a \
              time."