diff --git a/polkadot/runtime/kusama/src/lib.rs b/polkadot/runtime/kusama/src/lib.rs
index 0eb8cc0b49..f4e756e0a6 100644
--- a/polkadot/runtime/kusama/src/lib.rs
+++ b/polkadot/runtime/kusama/src/lib.rs
@@ -573,7 +573,7 @@ parameter_types! {
 	pub const BondingDuration: sp_staking::EraIndex = 28;
 	// 27 eras in which slashes can be cancelled (slightly less than 7 days).
 	pub const SlashDeferDuration: sp_staking::EraIndex = 27;
-	pub const MaxNominatorRewardedPerValidator: u32 = 256;
+	pub const MaxNominatorRewardedPerValidator: u32 = 512;
 	pub const OffendingValidatorsThreshold: Perbill = Perbill::from_percent(17);
 	// 24
 	pub const MaxNominations: u32 = <NposCompactSolution24 as NposSolution>::LIMIT as u32;
diff --git a/polkadot/runtime/polkadot/src/lib.rs b/polkadot/runtime/polkadot/src/lib.rs
index 5adf4e11e6..d16f9841c4 100644
--- a/polkadot/runtime/polkadot/src/lib.rs
+++ b/polkadot/runtime/polkadot/src/lib.rs
@@ -525,7 +525,7 @@ parameter_types! {
 	pub const BondingDuration: sp_staking::EraIndex = 28;
 	pub const SlashDeferDuration: sp_staking::EraIndex = 27;
 	pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
-	pub const MaxNominatorRewardedPerValidator: u32 = 256;
+	pub const MaxNominatorRewardedPerValidator: u32 = 512;
 	pub const OffendingValidatorsThreshold: Perbill = Perbill::from_percent(17);
 	// 16
 	pub const MaxNominations: u32 = <NposCompactSolution16 as frame_election_provider_support::NposSolution>::LIMIT as u32;