diff --git a/.env.dev b/.env.dev
index b920482236..5393f72d22 100644
--- a/.env.dev
+++ b/.env.dev
@@ -22,6 +22,6 @@ NEXT_PUBLIC_PROGRAMMABLE_SEARCH_ENGINE_ID=004538121411474993797:xkl3sdy-9su
 NEXT_PUBLIC_TRAVELOGGERS_URL=https://nft-develop.matters.news
 NEXT_PUBLIC_LOGBOOKS_URL=https://logbooks-vercel.matters.news
 NEXT_PUBLIC_ALCHEMY_KEY=1dMo8xjAFo8M6Y4sQ45WTD3Zie2-MA4C
-NEXT_PUBLIC_USDT_CONTRACT_ADDRESS=0xfe4F5145f6e09952a5ba9e956ED0C25e3Fa4c7F1
+NEXT_PUBLIC_USDT_CONTRACT_ADDRESS=0xc2132D05D31c914a87C6611C10748AEb04B58e8F
 NEXT_PUBLIC_CURATION_CONTRACT_ADDRESS=0xa219c6722008aa22828b31a13ab9ba93bb91222c
 DEBUG=false
diff --git a/src/common/utils/wallet.ts b/src/common/utils/wallet.ts
index 6d186d1b6b..280b5a3867 100644
--- a/src/common/utils/wallet.ts
+++ b/src/common/utils/wallet.ts
@@ -1,5 +1,5 @@
 import { Chain, configureChains, createClient, createStorage } from 'wagmi'
-import { goerli, mainnet, polygon, polygonMumbai } from 'wagmi/chains'
+import { goerli, mainnet, polygon } from 'wagmi/chains'
 import { MetaMaskConnector } from 'wagmi/connectors/metaMask'
 import { WalletConnectConnector } from 'wagmi/connectors/walletConnect'
 import { alchemyProvider } from 'wagmi/providers/alchemy'
@@ -10,13 +10,16 @@ const isProd = process.env.NEXT_PUBLIC_RUNTIME_ENV === 'production'
 const alchemyId = process.env.NEXT_PUBLIC_ALCHEMY_KEY!
 
 export const featureSupportedChains = {
-  curation: isProd ? [polygon] : [polygonMumbai],
+  curation: isProd ? [polygon] : [polygon],
   ens: isProd ? [mainnet] : [goerli],
 }
 
-const defaultChains: Chain[] = isProd
-  ? [mainnet, polygon]
-  : [goerli, polygonMumbai]
+const defaultChains: Chain[] = isProd ? [mainnet, polygon] : [goerli, polygon]
+
+// FIXME: make contract wallet (e.g. UniPass) default chain as
+// Polygon Mainnet for signing since most of the wallet providers help user
+// to deplopy contract on Polygon Mainnet free of charge.
+export const walletConnectConnectChain = polygon
 
 export const { provider: wagmiProvider, chains } = configureChains(
   defaultChains,
diff --git a/src/components/Forms/WalletAuthForm/Select.tsx b/src/components/Forms/WalletAuthForm/Select.tsx
index ad6fea6d26..07283425a9 100644
--- a/src/components/Forms/WalletAuthForm/Select.tsx
+++ b/src/components/Forms/WalletAuthForm/Select.tsx
@@ -3,7 +3,7 @@ import { FormattedMessage } from 'react-intl'
 import { useAccount, useConnect, useDisconnect } from 'wagmi'
 
 import { EXTERNAL_LINKS, GUIDE_LINKS } from '~/common/enums'
-import { analytics } from '~/common/utils'
+import { analytics, walletConnectConnectChain } from '~/common/utils'
 import {
   Dialog,
   Form,
@@ -236,7 +236,10 @@ const Select: React.FC<FormProps> = ({
             analytics.trackEvent('click_button', {
               type: 'connectorWalletConnect',
             })
-            connect({ connector: walletConnectConnector })
+            connect({
+              connector: walletConnectConnector,
+              chainId: walletConnectConnectChain.id,
+            })
           }}
           role="button"
           right={isWalletConnectLoading ? <IconSpinner16 color="grey" /> : null}