diff --git a/cmd/crates/soroban-test/tests/it/integration/tx.rs b/cmd/crates/soroban-test/tests/it/integration/tx.rs
index d467e8e1c..9f5204a8d 100644
--- a/cmd/crates/soroban-test/tests/it/integration/tx.rs
+++ b/cmd/crates/soroban-test/tests/it/integration/tx.rs
@@ -1,7 +1,4 @@
-use soroban_cli::commands::tx;
-use soroban_sdk::xdr::{
-    Limits, ReadXdr, TransactionEnvelope, TransactionV1Envelope, VecM, WriteXdr,
-};
+use soroban_sdk::xdr::{Limits, ReadXdr, TransactionEnvelope, WriteXdr};
 use soroban_test::{AssertExt, TestEnv};
 
 use crate::integration::util::{deploy_contract, DeployKind, HELLO_WORLD};
@@ -11,7 +8,6 @@ async fn txn_simulate() {
     let sandbox = &TestEnv::new();
     let xdr_base64_build_only = deploy_contract(sandbox, HELLO_WORLD, DeployKind::BuildOnly).await;
     let xdr_base64_sim_only = deploy_contract(sandbox, HELLO_WORLD, DeployKind::SimOnly).await;
-    let cmd = tx::simulate::Cmd::default();
     let tx_env =
         TransactionEnvelope::from_xdr_base64(&xdr_base64_build_only, Limits::none()).unwrap();
     let tx = soroban_cli::commands::tx::xdr::unwrap_envelope_v1(tx_env).unwrap();
@@ -23,7 +19,11 @@ async fn txn_simulate() {
         .success()
         .stdout_as_str();
     assert_eq!(xdr_base64_sim_only, assembled_str);
-    let assembled = cmd.simulate(tx, &sandbox.client()).await.unwrap();
+    let assembled = sandbox
+        .client()
+        .simulate_and_assemble_transaction(&tx)
+        .await
+        .unwrap();
     let txn_env: TransactionEnvelope = assembled.transaction().clone().into();
     assert_eq!(
         txn_env.to_xdr_base64(Limits::none()).unwrap(),