diff --git a/chain-spec-generator/src/relay_chain_specs.rs b/chain-spec-generator/src/relay_chain_specs.rs
index e8c2fa3c8a..5ee20389d8 100644
--- a/chain-spec-generator/src/relay_chain_specs.rs
+++ b/chain-spec-generator/src/relay_chain_specs.rs
@@ -21,7 +21,11 @@ use beefy_primitives::ecdsa_crypto::AuthorityId as BeefyId;
 use grandpa::AuthorityId as GrandpaId;
 use kusama_runtime_constants::currency::UNITS as KSM;
 use pallet_staking::Forcing;
-use polkadot_primitives::{AccountId, AccountPublic, AssignmentId, ValidatorId};
+use polkadot_primitives::{
+	vstaging::{ApprovalVotingParams, NodeFeatures},
+	AccountId, AccountPublic, AssignmentId, AsyncBackingParams, ValidatorId,
+	ON_DEMAND_DEFAULT_QUEUE_MAX_SIZE,
+};
 use polkadot_runtime_constants::currency::UNITS as DOT;
 use runtime_parachains::configuration::HostConfiguration;
 use sc_chain_spec::{ChainSpec, ChainType, NoExtension};
@@ -76,7 +80,26 @@ fn default_parachains_host_configuration() -> HostConfiguration<polkadot_primiti
 		relay_vrf_modulo_samples: 2,
 		zeroth_delay_tranche_width: 0,
 		minimum_validation_upgrade_delay: 5,
-		..Default::default()
+		dispute_post_conclusion_acceptance_period: 100u32,
+		scheduling_lookahead: 1,
+		max_validators_per_core: Default::default(),
+		coretime_cores: Default::default(),
+		on_demand_retries: Default::default(),
+		on_demand_queue_max_size: ON_DEMAND_DEFAULT_QUEUE_MAX_SIZE,
+		on_demand_target_queue_utilization: Perbill::from_percent(25),
+		on_demand_fee_variability: Perbill::from_percent(3),
+		on_demand_base_fee: 10_000_000u128,
+		minimum_backing_votes: 1,
+		node_features: NodeFeatures::EMPTY,
+		async_backing_params: AsyncBackingParams {
+			max_candidate_depth: 2,
+			allowed_ancestry_len: 2,
+		},
+		executor_params: Default::default(),
+		on_demand_ttl: 5,
+		max_validators: None,
+		pvf_voting_ttl: 2,
+		approval_voting_params: ApprovalVotingParams { max_approval_coalesce_count: 1 },
 	}
 }