diff --git a/packages/huma-widget/src/components/CreditLine/payment/1-ChooseAmount.tsx b/packages/huma-widget/src/components/CreditLine/payment/1-ChooseAmount.tsx
index d29aac3..b87aee6 100644
--- a/packages/huma-widget/src/components/CreditLine/payment/1-ChooseAmount.tsx
+++ b/packages/huma-widget/src/components/CreditLine/payment/1-ChooseAmount.tsx
@@ -6,6 +6,7 @@ import {
   useCLPoolAllowance,
 } from '@huma-finance/shared'
 import React, { useCallback, useEffect, useState } from 'react'
+import { BigNumber } from 'ethers'
 
 import { useAppDispatch } from '../../../hooks/useRedux'
 import { setPaymentAmount, setStep } from '../../../store/widgets.reducers'
@@ -43,8 +44,8 @@ export function ChooseAmount({
   )
 
   const handleAction = useCallback(() => {
-    const payAmount = upScale(currentAmount, decimals)
-    const step = toBigNumber(payAmount).gt(allowance)
+    const payAmount = upScale<BigNumber>(toBigNumber(currentAmount), decimals)
+    const step = payAmount.gt(allowance)
       ? WIDGET_STEP.ApproveAllowance
       : WIDGET_STEP.Transfer
     dispatch(setStep(step))
diff --git a/packages/huma-widget/src/components/CreditLine/payment/3-Transfer.tsx b/packages/huma-widget/src/components/CreditLine/payment/3-Transfer.tsx
index a07d892..8df17ad 100644
--- a/packages/huma-widget/src/components/CreditLine/payment/3-Transfer.tsx
+++ b/packages/huma-widget/src/components/CreditLine/payment/3-Transfer.tsx
@@ -1,6 +1,7 @@
 import { useWeb3React } from '@web3-react/core'
 import { PoolInfoType, toBigNumber, upScale } from '@huma-finance/shared'
 import React, { useCallback } from 'react'
+import { BigNumber } from 'ethers'
 
 import { useAppDispatch, useAppSelector } from '../../../hooks/useRedux'
 import { selectWidgetState } from '../../../store/widgets.selectors'
@@ -17,7 +18,10 @@ export function Transfer({ poolInfo }: Props): React.ReactElement {
   const { account } = useWeb3React()
   const { paymentAmount } = useAppSelector(selectWidgetState)
   const { decimals } = poolInfo.poolUnderlyingToken
-  const paymentBigNumber = toBigNumber(upScale(paymentAmount!, decimals))
+  const paymentBigNumber = upScale<BigNumber>(
+    toBigNumber(paymentAmount!),
+    decimals,
+  )
 
   const handleSuccess = useCallback(() => {
     dispatch(setStep(WIDGET_STEP.Done))