--- a/tests/src/util/playgrounds/unique.dev.ts
+++ b/tests/src/util/playgrounds/unique.dev.ts
@@ -421,7 +421,7 @@
     return capture;
   }
 
-  makeXcmProgramWithdrawDeposit(beneficiary: Uint8Array, id: any, amount: bigint | string) {
+  makeXcmProgramWithdrawDeposit(beneficiary: Uint8Array, id: any, amount: bigint) {
     return {
       V2: [
         {
@@ -468,7 +468,7 @@
     };
   }
 
-  makeXcmProgramReserveAssetDeposited(beneficiary: Uint8Array, id: any, amount: bigint | string) {
+  makeXcmProgramReserveAssetDeposited(beneficiary: Uint8Array, id: any, amount: bigint) {
     return {
       V2: [
         {
--- a/tests/src/util/playgrounds/unique.ts
+++ b/tests/src/util/playgrounds/unique.ts
@@ -2446,7 +2446,7 @@
     return this.ethBalanceGroup.getEthereum(address);
   }
 
-  async setBalanceSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint | string, reservedAmount: bigint | string = 0n) {
+  async setBalanceSubstrate(signer: TSigner, address: TSubstrateAccount, amount: bigint, reservedAmount: bigint = 0n) {
     await this.helper.executeExtrinsic(signer, 'api.tx.balances.setBalance', [address, amount, reservedAmount], true);
   }