diff --git a/smoketest/tests/upgrade_gateway.rs b/smoketest/tests/upgrade_gateway.rs
index 348488d06f..cb844e9c7d 100644
--- a/smoketest/tests/upgrade_gateway.rs
+++ b/smoketest/tests/upgrade_gateway.rs
@@ -8,6 +8,7 @@ use ethers::{
 };
 use futures::StreamExt;
 use hex_literal::hex;
+use snowbridge_smoketest::parachains::bridgehub::api::runtime_types::snowbridge_core::outbound::Initializer;
 use snowbridge_smoketest::{
     contracts::{
         gateway_upgrade_mock::{self, InitializedFilter},
@@ -30,7 +31,7 @@ use snowbridge_smoketest::{
         },
     },
 };
-use sp_core::{blake2_256, sr25519::Pair, Pair as PairT};
+use sp_core::{sr25519::Pair, Pair as PairT};
 use subxt::{
     tx::{PairSigner, TxPayload},
     OnlineClient, PolkadotConfig,
@@ -74,7 +75,6 @@ async fn upgrade_gateway() {
     let d_0 = 99;
     let d_1 = 66;
     let params = ethers::abi::encode(&[Token::Uint(d_0.into()), Token::Uint(d_1.into())]);
-    let params_hash = blake2_256(&params);
 
     let code = ethereum_client
         .get_code(
@@ -91,7 +91,10 @@ async fn upgrade_gateway() {
         .upgrade(
             GATETWAY_UPGRADE_MOCK_CONTRACT.into(),
             gateway_upgrade_mock_code_hash.into(),
-            Some(params),
+            Some(Initializer {
+                params: params,
+                maximum_required_gas: 0,
+            }),
         )
         .encode_call_data(&bridgehub.metadata())
         .expect("encoded call");