diff --git a/parachain/pallets/ethereum-client/src/tests.rs b/parachain/pallets/ethereum-client/src/tests.rs
index d6996838fb..ca3435877c 100644
--- a/parachain/pallets/ethereum-client/src/tests.rs
+++ b/parachain/pallets/ethereum-client/src/tests.rs
@@ -629,22 +629,19 @@ fn submit_update_with_skipped_sync_committee_period() {
 
 #[test]
 fn submit_update_execution_headers_too_far_behind() {
-	let checkpoint = load_checkpoint_update_fixture();
-	let finalized_header_update = load_finalized_header_update_fixture();
-	let execution_header_update = load_execution_header_update_fixture();
-	let next_update = load_next_sync_committee_update_fixture();
+	let checkpoint = Box::new(load_checkpoint_update_fixture());
+	let finalized_header_update = Box::new(load_finalized_header_update_fixture());
+	let execution_header_update = Box::new(load_execution_header_update_fixture());
+	let next_update = Box::new(load_next_sync_committee_update_fixture());
 
 	new_tester().execute_with(|| {
 		let far_ahead_finalized_header_slot = finalized_header_update.finalized_header.slot +
 			(EPOCHS_PER_SYNC_COMMITTEE_PERIOD * SLOTS_PER_EPOCH * 2) as u64;
 		assert_ok!(EthereumBeaconClient::process_checkpoint_update(&checkpoint));
-		assert_ok!(EthereumBeaconClient::submit(
-			RuntimeOrigin::signed(1),
-			Box::new(finalized_header_update)
-		));
+		assert_ok!(EthereumBeaconClient::submit(RuntimeOrigin::signed(1), finalized_header_update));
 		assert_ok!(EthereumBeaconClient::submit_execution_header(
 			RuntimeOrigin::signed(1),
-			Box::new(execution_header_update)
+			execution_header_update
 		));
 
 		let header_root: H256 = TEST_HASH.into();
@@ -658,7 +655,7 @@ fn submit_update_execution_headers_too_far_behind() {
 		LatestFinalizedBlockRoot::<Test>::set(header_root);
 
 		assert_err!(
-			EthereumBeaconClient::submit(RuntimeOrigin::signed(1), Box::new(next_update)),
+			EthereumBeaconClient::submit(RuntimeOrigin::signed(1), next_update),
 			Error::<Test>::ExecutionHeaderTooFarBehind
 		);
 	});
@@ -699,14 +696,14 @@ fn submit_update_with_missing_bootstrap() {
 
 #[test]
 fn submit_update_with_invalid_sync_committee_update() {
-	let checkpoint = load_checkpoint_update_fixture();
-	let update = load_sync_committee_update_fixture();
-	let mut next_update = load_next_sync_committee_update_fixture();
+	let checkpoint = Box::new(load_checkpoint_update_fixture());
+	let update = Box::new(load_sync_committee_update_fixture());
+	let mut next_update = Box::new(load_next_sync_committee_update_fixture());
 
 	new_tester().execute_with(|| {
 		assert_ok!(EthereumBeaconClient::process_checkpoint_update(&checkpoint));
 
-		assert_ok!(EthereumBeaconClient::submit(RuntimeOrigin::signed(1), Box::new(update)));
+		assert_ok!(EthereumBeaconClient::submit(RuntimeOrigin::signed(1), update));
 
 		// makes update with invalid next_sync_committee
 		<FinalizedBeaconState<Test>>::mutate(<LatestFinalizedBlockRoot<Test>>::get(), |x| {
@@ -719,7 +716,7 @@ fn submit_update_with_invalid_sync_committee_update() {
 		next_update.next_sync_committee_update = Some(next_sync_committee);
 
 		assert_err!(
-			EthereumBeaconClient::submit(RuntimeOrigin::signed(1), Box::new(next_update)),
+			EthereumBeaconClient::submit(RuntimeOrigin::signed(1), next_update),
 			Error::<Test>::InvalidSyncCommitteeUpdate
 		);
 	});
diff --git a/parachain/runtime/runtime-common/src/lib.rs b/parachain/runtime/runtime-common/src/lib.rs
index 475aa8aee4..aae45520ff 100644
--- a/parachain/runtime/runtime-common/src/lib.rs
+++ b/parachain/runtime/runtime-common/src/lib.rs
@@ -52,7 +52,7 @@ impl<Balance, AccountId, FeeAssetLocation, EthereumNetwork, AssetTransactor, Fee
 		FeeProvider,
 	> where
 	Balance: BaseArithmetic + Unsigned + Copy + From<u128> + Into<u128> + Debug,
-	AccountId: Clone + Into<[u8; 32]> + From<[u8; 32]> + FullCodec,
+	AccountId: Clone + FullCodec,
 	FeeAssetLocation: Get<Location>,
 	EthereumNetwork: Get<NetworkId>,
 	AssetTransactor: TransactAsset,
diff --git a/parachain/runtime/runtime-common/src/tests.rs b/parachain/runtime/runtime-common/src/tests.rs
index 3b01a6b043..50df6dc9aa 100644
--- a/parachain/runtime/runtime-common/src/tests.rs
+++ b/parachain/runtime/runtime-common/src/tests.rs
@@ -5,10 +5,10 @@ use xcm::prelude::{
 	Asset, Assets, Here, Kusama, Location, NetworkId, Parachain, XcmContext, XcmError, XcmHash,
 	XcmResult,
 };
-use xcm_builder::HandleFee;
 use xcm_executor::{
-	traits::{FeeReason, TransactAsset},
+	traits::{FeeReason, TransactAsset}, AssetsInHolding,
 };
+use xcm_builder::HandleFee;
 
 parameter_types! {
 	pub EthereumNetwork: NetworkId = NetworkId::Ethereum { chain_id: 11155111 };
@@ -74,8 +74,8 @@ impl TransactAsset for MockAssetTransactor {
 		_what: &Asset,
 		_who: &Location,
 		_context: Option<&XcmContext>,
-	) -> Result<Assets, XcmError> {
-		Ok(Assets::default())
+	) -> Result<AssetsInHolding, XcmError> {
+		Ok(Assets::default().into())
 	}
 
 	fn internal_transfer_asset(
@@ -83,8 +83,8 @@ impl TransactAsset for MockAssetTransactor {
 		_from: &Location,
 		_to: &Location,
 		_context: &XcmContext,
-	) -> Result<Assets, XcmError> {
-		Ok(Assets::default())
+	) -> Result<AssetsInHolding, XcmError> {
+		Ok(Assets::default().into())
 	}
 }