diff --git a/polkadot-parachains/statemine/src/lib.rs b/polkadot-parachains/statemine/src/lib.rs
index 91cf0026ed..ac9a0f3968 100644
--- a/polkadot-parachains/statemine/src/lib.rs
+++ b/polkadot-parachains/statemine/src/lib.rs
@@ -736,18 +736,9 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	OnRuntimeUpgrade,
+	(),
 >;
 
-pub struct OnRuntimeUpgrade;
-impl frame_support::traits::OnRuntimeUpgrade for OnRuntimeUpgrade {
-	fn on_runtime_upgrade() -> u64 {
-		frame_support::migrations::migrate_from_pallet_version_to_storage_version::<
-			AllPalletsWithSystem,
-		>(&RocksDbWeight::get())
-	}
-}
-
 impl_runtime_apis! {
 	impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {
 		fn slot_duration() -> sp_consensus_aura::SlotDuration {
diff --git a/polkadot-parachains/westmint/src/lib.rs b/polkadot-parachains/westmint/src/lib.rs
index ff25ea89e9..0f1d4b6faa 100644
--- a/polkadot-parachains/westmint/src/lib.rs
+++ b/polkadot-parachains/westmint/src/lib.rs
@@ -722,18 +722,9 @@ pub type Executive = frame_executive::Executive<
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPallets,
-	OnRuntimeUpgrade,
+	(),
 >;
 
-pub struct OnRuntimeUpgrade;
-impl frame_support::traits::OnRuntimeUpgrade for OnRuntimeUpgrade {
-	fn on_runtime_upgrade() -> u64 {
-		frame_support::migrations::migrate_from_pallet_version_to_storage_version::<
-			AllPalletsWithSystem,
-		>(&RocksDbWeight::get())
-	}
-}
-
 impl_runtime_apis! {
 	impl sp_consensus_aura::AuraApi<Block, AuraId> for Runtime {
 		fn slot_duration() -> sp_consensus_aura::SlotDuration {