diff --git a/crates/pallet-domains/src/tests.rs b/crates/pallet-domains/src/tests.rs
index 2b480c775c..f85b6fb281 100644
--- a/crates/pallet-domains/src/tests.rs
+++ b/crates/pallet-domains/src/tests.rs
@@ -18,6 +18,7 @@ use frame_support::weights::{IdentityFee, Weight};
 use frame_support::{assert_err, assert_ok, derive_impl, parameter_types, PalletId};
 use frame_system::mocking::MockUncheckedExtrinsic;
 use frame_system::pallet_prelude::*;
+use frame_system::DefaultConfig;
 use scale_info::TypeInfo;
 use sp_core::crypto::Pair;
 use sp_core::storage::{StateVersion, StorageKey};
@@ -76,7 +77,7 @@ type BlockNumber = u64;
 type Hash = H256;
 type AccountId = u128;
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
     type Hash = Hash;
diff --git a/crates/pallet-feeds/src/mock.rs b/crates/pallet-feeds/src/mock.rs
index b66d798d6c..29fdcb882f 100644
--- a/crates/pallet-feeds/src/mock.rs
+++ b/crates/pallet-feeds/src/mock.rs
@@ -2,6 +2,7 @@ use crate::feed_processor::{FeedObjectMapping, FeedProcessor, FeedProcessor as F
 use crate::{self as pallet_feeds};
 use codec::{Compact, CompactLen, Decode, Encode};
 use frame_support::{derive_impl, parameter_types};
+use frame_system::DefaultConfig;
 use scale_info::TypeInfo;
 use sp_runtime::BuildStorage;
 
@@ -15,7 +16,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
 }
diff --git a/crates/pallet-grandpa-finality-verifier/src/tests/mock.rs b/crates/pallet-grandpa-finality-verifier/src/tests/mock.rs
index 8fb3b02c6b..6dff3c725b 100644
--- a/crates/pallet-grandpa-finality-verifier/src/tests/mock.rs
+++ b/crates/pallet-grandpa-finality-verifier/src/tests/mock.rs
@@ -1,5 +1,6 @@
 use frame_support::weights::Weight;
 use frame_support::{construct_runtime, derive_impl, parameter_types};
+use frame_system::DefaultConfig;
 use sp_runtime::Perbill;
 
 pub(crate) type ChainId = u64;
@@ -21,7 +22,7 @@ parameter_types! {
     pub const AvailableBlockRatio: Perbill = Perbill::one();
 }
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for TestRuntime {
     type Block = Block;
 }
diff --git a/crates/pallet-object-store/src/mock.rs b/crates/pallet-object-store/src/mock.rs
index 268e797276..465080b2f9 100644
--- a/crates/pallet-object-store/src/mock.rs
+++ b/crates/pallet-object-store/src/mock.rs
@@ -1,4 +1,5 @@
 use frame_support::derive_impl;
+use frame_system::DefaultConfig;
 use sp_runtime::BuildStorage;
 
 type Block = frame_system::mocking::MockBlock<Test>;
@@ -10,7 +11,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
 }
diff --git a/crates/pallet-offences-subspace/src/mock.rs b/crates/pallet-offences-subspace/src/mock.rs
index 4720e7018b..2869360f7b 100644
--- a/crates/pallet-offences-subspace/src/mock.rs
+++ b/crates/pallet-offences-subspace/src/mock.rs
@@ -24,6 +24,7 @@ use codec::Encode;
 use frame_support::derive_impl;
 use frame_support::weights::constants::ParityDbWeight;
 use frame_support::weights::Weight;
+use frame_system::DefaultConfig;
 use sp_consensus_subspace::offence::{self, Kind, OffenceDetails};
 use sp_consensus_subspace::FarmerPublicKey;
 use sp_core::H256;
@@ -58,7 +59,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Runtime {
     type Block = Block;
     type DbWeight = ParityDbWeight;
diff --git a/crates/pallet-rewards/src/mock.rs b/crates/pallet-rewards/src/mock.rs
index 36778553c5..d43dfd56ba 100644
--- a/crates/pallet-rewards/src/mock.rs
+++ b/crates/pallet-rewards/src/mock.rs
@@ -2,6 +2,7 @@
 
 use frame_support::derive_impl;
 use frame_support::traits::{ConstU128, ConstU32};
+use frame_system::DefaultConfig;
 use sp_runtime::traits::parameter_types;
 use subspace_runtime_primitives::{
     FindBlockRewardAddress, FindVotingRewardAddresses, RewardsEnabled,
@@ -18,7 +19,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
     type AccountData = pallet_balances::AccountData<Balance>;
diff --git a/crates/pallet-subspace/src/mock.rs b/crates/pallet-subspace/src/mock.rs
index 3a68b6f48f..980d00b079 100644
--- a/crates/pallet-subspace/src/mock.rs
+++ b/crates/pallet-subspace/src/mock.rs
@@ -23,6 +23,7 @@ use crate::{
 };
 use frame_support::traits::{ConstU128, ConstU16, OnInitialize};
 use frame_support::{derive_impl, parameter_types};
+use frame_system::DefaultConfig;
 use futures::executor::block_on;
 use rand::Rng;
 use schnorrkel::Keypair;
@@ -93,7 +94,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
     type AccountData = pallet_balances::AccountData<Balance>;
diff --git a/domains/pallets/domain-id/src/tests.rs b/domains/pallets/domain-id/src/tests.rs
index f295a17289..6d21764f4c 100644
--- a/domains/pallets/domain-id/src/tests.rs
+++ b/domains/pallets/domain-id/src/tests.rs
@@ -1,5 +1,6 @@
 use crate::{self as pallet_domain_id};
 use frame_support::derive_impl;
+use frame_system::DefaultConfig;
 use sp_runtime::BuildStorage;
 
 type Block = frame_system::mocking::MockBlock<Test>;
@@ -13,7 +14,7 @@ frame_support::construct_runtime!(
 
 impl pallet_domain_id::Config for Test {}
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for Test {
     type Block = Block;
 }
diff --git a/domains/pallets/executive/src/mock.rs b/domains/pallets/executive/src/mock.rs
index 41d3c50ecc..a267d05fdf 100644
--- a/domains/pallets/executive/src/mock.rs
+++ b/domains/pallets/executive/src/mock.rs
@@ -4,6 +4,7 @@ use frame_support::dispatch::DispatchInfo;
 use frame_support::weights::IdentityFee;
 use frame_support::{derive_impl, parameter_types};
 use frame_system::mocking::MockUncheckedExtrinsic;
+use frame_system::DefaultConfig;
 use pallet_balances::AccountData;
 use sp_runtime::BuildStorage;
 
@@ -19,7 +20,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for MockRuntime {
     type Block = Block;
     type AccountData = AccountData<Balance>;
diff --git a/domains/pallets/messenger/src/mock.rs b/domains/pallets/messenger/src/mock.rs
index 84835a80c9..042951fe82 100644
--- a/domains/pallets/messenger/src/mock.rs
+++ b/domains/pallets/messenger/src/mock.rs
@@ -30,6 +30,7 @@ macro_rules! impl_runtime {
         use sp_messenger::endpoint::{Endpoint, EndpointHandler, EndpointId};
         use sp_messenger::messages::ChainId;
         use sp_runtime::traits::Convert;
+        use frame_system::DefaultConfig;
         use sp_runtime::BuildStorage;
         use crate::HoldIdentifier;
         use sp_domains::ChannelId;
@@ -50,7 +51,7 @@ macro_rules! impl_runtime {
             }
         );
 
-        #[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+        #[derive_impl(frame_system::config_preludes::TestDefaultConfig )]
         impl frame_system::Config for $runtime {
             type Block = Block;
             type AccountData = AccountData<Balance>;
diff --git a/domains/pallets/transporter/src/mock.rs b/domains/pallets/transporter/src/mock.rs
index 257a2d7636..9e6b9a9185 100644
--- a/domains/pallets/transporter/src/mock.rs
+++ b/domains/pallets/transporter/src/mock.rs
@@ -3,6 +3,7 @@ use crate::{Config, TryConvertBack};
 use codec::{Decode, Encode};
 use domain_runtime_primitives::MultiAccountId;
 use frame_support::{derive_impl, parameter_types};
+use frame_system::DefaultConfig;
 use pallet_balances::AccountData;
 use sp_messenger::endpoint::{EndpointId, EndpointRequest, Sender};
 use sp_messenger::messages::ChainId;
@@ -21,7 +22,7 @@ frame_support::construct_runtime!(
     }
 );
 
-#[derive_impl(frame_system::config_preludes::TestDefaultConfig as frame_system::DefaultConfig)]
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
 impl frame_system::Config for MockRuntime {
     type Block = Block;
     type AccountId = AccountId;