diff --git a/pallets/collator-selection/src/mock.rs b/pallets/collator-selection/src/mock.rs
index 44f7df102f..be849eb602 100644
--- a/pallets/collator-selection/src/mock.rs
+++ b/pallets/collator-selection/src/mock.rs
@@ -208,7 +208,7 @@ parameter_types! {
 	pub const DefaultWeightToFeeCoefficient: u64 = 100_000;
 	pub const DefaultMinGasPrice: u64 = 100_000;
 	pub const MaxXcmAllowedLocations: u32 = 16;
-	pub AppPromotionDailyRate: Perbill = Perbill::from_rational(453_256u64, 1_000_000_000u64);
+	pub AppPromotionDailyRate: Perbill = Perbill::from_parts(453_256);
 	pub const DayRelayBlocks: u32 = 1;
 	pub const LicenceBondIdentifier: [u8; 16] = *b"licenceidentifie";
 }