diff --git a/packages/contracts/src/index.js b/packages/contracts/src/index.js
index 68aa6df..01324b6 100644
--- a/packages/contracts/src/index.js
+++ b/packages/contracts/src/index.js
@@ -1,3 +1,3 @@
-export * from './token_contracts'
-export * from './chain_contracts'
-export * from './bridge_contracts'
+export * from './token_contracts.js'
+export * from './chain_contracts.js'
+export * from './bridge_contracts.js'
diff --git a/packages/contracts/src/token_contracts.js b/packages/contracts/src/token_contracts.js
index c91fcaf..d9d4b20 100644
--- a/packages/contracts/src/token_contracts.js
+++ b/packages/contracts/src/token_contracts.js
@@ -1,6 +1,6 @@
 import { CHAIN_ETHEREUM, CHAIN_XDAI, CHAIN_BSC, CHAIN_MATIC } from 'staker-freenodes'
-import { ETH_TOKEN_CONTRACTS } from './eth_tokens'
-import { BSC_TOKEN_CONTRACTS } from './bsc_tokens'
+import { ETH_TOKEN_CONTRACTS } from './eth_tokens.js'
+import { BSC_TOKEN_CONTRACTS } from './bsc_tokens.js'
 
 // https://blockscout.com/poa/xdai/bridged-tokens
 export const XDAI_TOKEN_CONTRACTS = [
diff --git a/packages/freenodes/src/defi-explorers.js b/packages/freenodes/src/defi-explorers.js
index 71eb6ad..f1d5a74 100644
--- a/packages/freenodes/src/defi-explorers.js
+++ b/packages/freenodes/src/defi-explorers.js
@@ -1,4 +1,4 @@
-import { CHAIN_ETHEREUM, CHAIN_BSC } from './chains'
+import { CHAIN_ETHEREUM, CHAIN_BSC } from './chains.js'
 
 export const DEFI_DAPPRADAR = 'dappradar'
 export const DEFI_DEBANK = 'debank'
diff --git a/packages/freenodes/src/explorers.js b/packages/freenodes/src/explorers.js
index 905c1ff..9be1f85 100644
--- a/packages/freenodes/src/explorers.js
+++ b/packages/freenodes/src/explorers.js
@@ -7,7 +7,7 @@ import {
   CHAIN_XDAI,
   L2_ZKSYNC,
   L2_OPTIMISM,
-} from './chains'
+} from './chains.js'
 
 export const CHAIN_ETHEREUM_EXPLORER_ETHERSCAN = 'etherscan'
 export const CHAIN_ETHEREUM_EXPLORER_BLOXY = 'bloxy'
diff --git a/packages/freenodes/src/index.js b/packages/freenodes/src/index.js
index fd75023..a044b05 100644
--- a/packages/freenodes/src/index.js
+++ b/packages/freenodes/src/index.js
@@ -1,5 +1,5 @@
-export * from './chains'
-export * from './explorers'
-export * from './gas-estimators'
-export * from './nodes'
-export * from './defi-explorers'
+export * from './chains.js'
+export * from './explorers.js'
+export * from './gas-estimators.js'
+export * from './nodes.js'
+export * from './defi-explorers.js'
diff --git a/packages/freenodes/src/nodes.js b/packages/freenodes/src/nodes.js
index 21e3673..d8b4913 100644
--- a/packages/freenodes/src/nodes.js
+++ b/packages/freenodes/src/nodes.js
@@ -6,7 +6,7 @@ import {
   CHAIN_HECO,
   L2_ZKSYNC,
   L2_OPTIMISM,
-} from './chains'
+} from './chains.js'
 
 // free nodes without API keys from https://ethereumnodes.com/
 export const ETH_NODES = [
diff --git a/packages/hooks/src/index.js b/packages/hooks/src/index.js
index 83cc530..ff45b76 100644
--- a/packages/hooks/src/index.js
+++ b/packages/hooks/src/index.js
@@ -1,3 +1,3 @@
-export * from './useEthscanBalance'
-export * from './useEthscanTokensBalance'
-export * from './useTokensPrice'
+export * from './useEthscanBalance.js'
+export * from './useEthscanTokensBalance.js'
+export * from './useTokensPrice.js'
diff --git a/packages/hooks/src/tokensPrice.js b/packages/hooks/src/tokensPrice.js
index 3eb8982..04dfa42 100644
--- a/packages/hooks/src/tokensPrice.js
+++ b/packages/hooks/src/tokensPrice.js
@@ -1,5 +1,5 @@
 
-import _toLower from 'lodash/toLower'
+import _toLower from 'lodash/toLower.js'
 
 import TOKEN_MAP from './coingecko_token_map.json'
 
diff --git a/packages/hooks/src/useEthscanBalance.js b/packages/hooks/src/useEthscanBalance.js
index 1c3b315..6d72aac 100644
--- a/packages/hooks/src/useEthscanBalance.js
+++ b/packages/hooks/src/useEthscanBalance.js
@@ -4,7 +4,7 @@ import {JsonRpcProvider} from '@ethersproject/providers';
 import {getEtherBalances} from '@mycrypto/eth-scan';
 import {getNodeURL, CHAIN_ETHEREUM} from 'staker-freenodes';
 import {CHAIN_BASETOKEN, ETHSCAN_CONTRACT} from 'staker-contracts';
-import isDeepEqual from 'fast-deep-equal/react';
+import isDeepEqual from 'fast-deep-equal/react.js';
 
 export const useEthscanBalance = (addresses, chainId = CHAIN_ETHEREUM) => {
   const [balance, setBalance] = useState([]);
diff --git a/packages/hooks/src/useEthscanTokensBalance.js b/packages/hooks/src/useEthscanTokensBalance.js
index 439150c..b48c9cb 100644
--- a/packages/hooks/src/useEthscanTokensBalance.js
+++ b/packages/hooks/src/useEthscanTokensBalance.js
@@ -4,7 +4,7 @@ import {JsonRpcProvider} from '@ethersproject/providers';
 import {getTokensBalances} from '@mycrypto/eth-scan';
 import {getNodeURL, CHAIN_ETHEREUM} from 'staker-freenodes'
 import {ETHSCAN_CONTRACT, TOKEN_CONTRACTS} from 'staker-contracts'
-import isDeepEqual from 'fast-deep-equal/react';
+import isDeepEqual from 'fast-deep-equal/react.js';
 
 export const useEthscanTokensBalance = (addresses, chainId = CHAIN_ETHEREUM, tokenMap = []) => {
   const [balance, setBalance] = useState([]);
diff --git a/packages/hooks/src/useTokensPrice.js b/packages/hooks/src/useTokensPrice.js
index f34b4a2..96cd085 100644
--- a/packages/hooks/src/useTokensPrice.js
+++ b/packages/hooks/src/useTokensPrice.js
@@ -1,7 +1,7 @@
 import React, { useState, useEffect, useCallback, useRef } from 'react'
-import isDeepEqual from 'fast-deep-equal/react';
+import isDeepEqual from 'fast-deep-equal/react.js';
 
-import {getTokenPriceQueryUrl} from './tokensPrice'
+import {getTokenPriceQueryUrl} from './tokensPrice.js'
 
 export const useTokensPrice = (tokens = [], fetch) => {
   const [tokenPrices, setTokenPrices] = useState([])
diff --git a/packages/staker/src/bsc/BscBalances.js b/packages/staker/src/bsc/BscBalances.js
index 02e3310..6a92f9d 100644
--- a/packages/staker/src/bsc/BscBalances.js
+++ b/packages/staker/src/bsc/BscBalances.js
@@ -6,7 +6,7 @@ import {t} from 'saihubot-cli-adapter/dist/i18n';
 import {CHAIN_BSC} from 'staker-freenodes';
 import {useEthscanBalance, useEthscanTokensBalance} from 'staker-hooks';
 
-import {formatData} from '../helpers/format';
+import {formatData} from '../helpers/format.js';
 
 const i18nBSC = {
   'en': {
diff --git a/packages/staker/src/bsc/saihubot-cli-skill-bsc.js b/packages/staker/src/bsc/saihubot-cli-skill-bsc.js
index 18f0529..e9cfb9e 100644
--- a/packages/staker/src/bsc/saihubot-cli-skill-bsc.js
+++ b/packages/staker/src/bsc/saihubot-cli-skill-bsc.js
@@ -3,10 +3,10 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_BSC, CHAIN_BSC_EXPLORER_BSCSCAN} from 'staker-freenodes'
 
-import {getConfig, parseArg, singleAddr, toArray, getExplorerLink} from '../utils';
-import {i18nAddr} from '../i18n';
-import BscBalances from './BscBalances';
-import {bscFetch} from './utils'
+import {getConfig, parseArg, singleAddr, toArray, getExplorerLink} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
+import BscBalances from './BscBalances.js';
+import {bscFetch} from './utils.js'
 
 /**
  * Check address or tx on bscscan.
diff --git a/packages/staker/src/bsc/utils.js b/packages/staker/src/bsc/utils.js
index df9565a..269db57 100644
--- a/packages/staker/src/bsc/utils.js
+++ b/packages/staker/src/bsc/utils.js
@@ -2,8 +2,8 @@
 
 import { BSC_NODES, getRandomItem } from 'staker-freenodes';
 
-import {getConfig} from '../utils';
-import {jsonRpcFetch} from '../helpers/jsonRpc';
+import {getConfig} from '../utils.js';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
 
 // ==== Binance Smart Chain JSON RPC ===
 
diff --git a/packages/staker/src/cli.js b/packages/staker/src/cli.js
index 33f3f39..f826559 100644
--- a/packages/staker/src/cli.js
+++ b/packages/staker/src/cli.js
@@ -11,32 +11,32 @@ import {
   addonExec,
   skillHelp,
 } from 'saihubot-cli-adapter';
-import {addonFetchGas} from './saihubot-addon-ethgas';
-import {skills as skillDelegates} from './saihubot-cli-skill-delegates';
+import {addonFetchGas} from './saihubot-addon-ethgas.js';
+import {skills as skillDelegates} from './saihubot-cli-skill-delegates.js';
 import {
   skillLastBlock,
   skillsAccount,
   skillsAddress,
   skillFeesWtf,
-} from './eth/saihubot-cli-skill-eth';
+} from './eth/saihubot-cli-skill-eth.js';
 import {
   skillEth2Stats,
   skillBeaconLastBlock,
   skillGetValidatorBalance,
   skillsValidator,
-} from './eth2/saihubot-cli-skill-eth2';
+} from './eth2/saihubot-cli-skill-eth2.js';
 // import {skills as skillsDefi} from './defi/saihubot-cli-skill-defi';
-import {skillsGas} from './eth/saihubot-cli-skill-ethgas';
-import {skillGetBalance, skillGetEthBalance, skillGetTokensPrice} from './saihubot-cli-skill-balance';
-import {skills as skillsXDAI} from './xdai/saihubot-cli-skill-xdai';
-import {skills as skillsBSC} from './bsc/saihubot-cli-skill-bsc';
-import {skills as skillsHeco} from './heco/saihubot-cli-skill-heco';
-import {skills as skillsMatic} from './matic/saihubot-cli-skill-matic';
-import {skills as skillOKExChain} from './okexchain/saihubot-cli-skill-okexchain';
-import {skills as skillsZkSync} from './zksync/saihubot-cli-skill-zksync';
-import {skills as skillsOptimism} from './optimism/saihubot-cli-skill-optimism';
-import {skills as skillsChain} from './saihubot-cli-skill-chainid';
-import {skillAwesomeEth} from './saihubot-skill-awesome';
+import {skillsGas} from './eth/saihubot-cli-skill-ethgas.js';
+import {skillGetBalance, skillGetEthBalance, skillGetTokensPrice} from './saihubot-cli-skill-balance.js';
+import {skills as skillsXDAI} from './xdai/saihubot-cli-skill-xdai.js';
+import {skills as skillsBSC} from './bsc/saihubot-cli-skill-bsc.js';
+import {skills as skillsHeco} from './heco/saihubot-cli-skill-heco.js';
+import {skills as skillsMatic} from './matic/saihubot-cli-skill-matic.js';
+import {skills as skillOKExChain} from './okexchain/saihubot-cli-skill-okexchain.js';
+import {skills as skillsZkSync} from './zksync/saihubot-cli-skill-zksync.js';
+import {skills as skillsOptimism} from './optimism/saihubot-cli-skill-optimism.js';
+import {skills as skillsChain} from './saihubot-cli-skill-chainid.js';
+import {skillAwesomeEth} from './saihubot-skill-awesome.js';
 
 const cli = meow(`
   v${process.env.npm_package_version}
diff --git a/packages/staker/src/components/TokensPrice.js b/packages/staker/src/components/TokensPrice.js
index 446dd18..dae8c73 100644
--- a/packages/staker/src/components/TokensPrice.js
+++ b/packages/staker/src/components/TokensPrice.js
@@ -3,7 +3,7 @@
 import React from 'react';
 import {View, Text} from 'ink';
 import {useTokensPrice} from 'staker-hooks';
-import _toUpper from 'lodash/toUpper';
+import _toUpper from 'lodash/toUpper.js';
 
 export const TokensPrice = ({tokens, fetch}) => {
   const [tokenPrices, tokenIdMap] = useTokensPrice(tokens, fetch);
diff --git a/packages/staker/src/eth/DefiStakes.js b/packages/staker/src/eth/DefiStakes.js
index 90b3250..4973caa 100644
--- a/packages/staker/src/eth/DefiStakes.js
+++ b/packages/staker/src/eth/DefiStakes.js
@@ -2,8 +2,8 @@ import React, {useEffect, useState} from 'react';
 import {t} from 'saihubot-cli-adapter/dist/i18n';
 import {Text} from 'ink';
 
-import {ethFetch, rpcDefiGetBalances} from '../helpers/ethRpc';
-import {i18nBalance} from '../i18n';
+import {ethFetch, rpcDefiGetBalances} from '../helpers/ethRpc.js';
+import {i18nBalance} from '../i18n.js';
 
 export const DefiStakes = ({address, fetch}) => {
   const [balance, setBalance] = useState('');
diff --git a/packages/staker/src/eth/EthBalances.js b/packages/staker/src/eth/EthBalances.js
index f67a23f..2c86506 100644
--- a/packages/staker/src/eth/EthBalances.js
+++ b/packages/staker/src/eth/EthBalances.js
@@ -8,9 +8,9 @@ import {CHAIN_ETHEREUM} from 'staker-freenodes';
 import {useEthscanBalance, useEthscanTokensBalance} from 'staker-hooks';
 // import useTokenList from './useTokenList';
 
-import {formatData} from '../helpers/format';
+import {formatData} from '../helpers/format.js';
 
-import {i18nValidator, i18nBalance} from '../i18n';
+import {i18nValidator, i18nBalance} from '../i18n.js';
 
 export const EthBalances = ({addresses, fetch}) => {
   if (!addresses) return null;
diff --git a/packages/staker/src/eth/saihubot-cli-skill-defi.js b/packages/staker/src/eth/saihubot-cli-skill-defi.js
index 4bd12c9..4655fef 100644
--- a/packages/staker/src/eth/saihubot-cli-skill-defi.js
+++ b/packages/staker/src/eth/saihubot-cli-skill-defi.js
@@ -3,9 +3,9 @@
 import React from 'react';
 import {t} from 'saihubot-cli-adapter/dist/i18n';
 
-import DefiStakes from './DefiStakes'
-import {getConfig, singleAddr} from '../utils';
-import {i18nAddr} from '../i18n';
+import DefiStakes from './DefiStakes.js'
+import {getConfig, singleAddr} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
 
 /**
  * Show balance in Defi projects.
diff --git a/packages/staker/src/eth/saihubot-cli-skill-eth.js b/packages/staker/src/eth/saihubot-cli-skill-eth.js
index 0dc5147..98c902c 100644
--- a/packages/staker/src/eth/saihubot-cli-skill-eth.js
+++ b/packages/staker/src/eth/saihubot-cli-skill-eth.js
@@ -19,9 +19,9 @@ import {
   CHAIN_ETHEREUM_EXPLORER_ANYBLOCK,
 } from 'staker-freenodes';
 
-import {getConfig, singleAddr, getExplorerLink} from '../utils';
-import {i18nAddr} from '../i18n';
-import {ethFetch, rpcLastBlock} from '../helpers/ethRpc';
+import {getConfig, singleAddr, getExplorerLink} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
+import {ethFetch, rpcLastBlock} from '../helpers/ethRpc.js';
 
 /**
  * Get the latest block number.
diff --git a/packages/staker/src/eth/saihubot-cli-skill-ethgas.js b/packages/staker/src/eth/saihubot-cli-skill-ethgas.js
index 6fa9b64..d19f4e8 100644
--- a/packages/staker/src/eth/saihubot-cli-skill-ethgas.js
+++ b/packages/staker/src/eth/saihubot-cli-skill-ethgas.js
@@ -10,7 +10,7 @@ import {
   getRandomItem,
 } from 'staker-freenodes'
 
-import {ethFetch, rpcGasPrice} from '../helpers/ethRpc';
+import {ethFetch, rpcGasPrice} from '../helpers/ethRpc.js';
 
 // ==== GAS ===
 
diff --git a/packages/staker/src/eth/useNativeTokenBalance.js b/packages/staker/src/eth/useNativeTokenBalance.js
index e48dc5c..055f032 100644
--- a/packages/staker/src/eth/useNativeTokenBalance.js
+++ b/packages/staker/src/eth/useNativeTokenBalance.js
@@ -1,6 +1,6 @@
 import React, {useEffect, useState} from 'react';
 
-import {rpcEthBalance} from '../helpers/ethRpc';
+import {rpcEthBalance} from '../helpers/ethRpc.js';
 
 export const useNativeTokenBalance = ({
   addresses,
diff --git a/packages/staker/src/eth/useTokenBalance.js b/packages/staker/src/eth/useTokenBalance.js
index a697508..2ee4456 100644
--- a/packages/staker/src/eth/useTokenBalance.js
+++ b/packages/staker/src/eth/useTokenBalance.js
@@ -1,6 +1,6 @@
 import React, {useEffect, useState} from 'react';
 
-import {rpcTokenBalance} from '../helpers/ethRpc';
+import {rpcTokenBalance} from '../helpers/ethRpc.js';
 
 export const useTokenBalance = ({
   addresses,
diff --git a/packages/staker/src/eth2/ValidatorBalances.js b/packages/staker/src/eth2/ValidatorBalances.js
index be1abef..e483964 100644
--- a/packages/staker/src/eth2/ValidatorBalances.js
+++ b/packages/staker/src/eth2/ValidatorBalances.js
@@ -5,8 +5,8 @@ import { Text } from 'ink';
 import Table from 'ink-table';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 
-import {parseArg, toArray} from '../utils';
-import {i18nValidator} from '../i18n';
+import {parseArg, toArray} from '../utils.js';
+import {i18nValidator} from '../i18n.js';
 
 // support multiple validators balance by comma (without space)
 export const ValidatorBalances = ({validator, fetch}) => {
diff --git a/packages/staker/src/eth2/saihubot-cli-skill-eth2.js b/packages/staker/src/eth2/saihubot-cli-skill-eth2.js
index 0f20a56..b1034b1 100644
--- a/packages/staker/src/eth2/saihubot-cli-skill-eth2.js
+++ b/packages/staker/src/eth2/saihubot-cli-skill-eth2.js
@@ -8,13 +8,13 @@ import commaNumber from 'comma-number';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {getRandomItem} from 'staker-freenodes';
 
-import ValidatorBalances from './ValidatorBalances';
+import ValidatorBalances from './ValidatorBalances.js';
 
-import {ethFetch} from '../helpers/ethRpc';
-import {getConfig, parseArg, singleAddr} from '../utils';
-import {i18nValidator, i18nAddr} from '../i18n';
-import useNativeTokenBalance from '../eth/useNativeTokenBalance';
-import useCoingeckoTokenStat from '../eth/useCoingeckoTokenStat';
+import {ethFetch} from '../helpers/ethRpc.js';
+import {getConfig, parseArg, singleAddr} from '../utils.js';
+import {i18nValidator, i18nAddr} from '../i18n.js';
+import useNativeTokenBalance from '../eth/useNativeTokenBalance.js';
+import useCoingeckoTokenStat from '../eth/useCoingeckoTokenStat.js';
 
 const ADDR = {
   ETH2_DEPOSIT: '0x00000000219ab540356cbb839cbe05303d7705fa',
diff --git a/packages/staker/src/heco/saihubot-cli-skill-heco.js b/packages/staker/src/heco/saihubot-cli-skill-heco.js
index 84cad6d..7d1ee0b 100644
--- a/packages/staker/src/heco/saihubot-cli-skill-heco.js
+++ b/packages/staker/src/heco/saihubot-cli-skill-heco.js
@@ -3,8 +3,8 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_HECO, CHAIN_HECO_EXPLORER_HECOINFO} from 'staker-freenodes'
 
-import {getConfig, singleAddr, getExplorerLink} from '../utils';
-import {i18nAddr} from '../i18n';
+import {getConfig, singleAddr, getExplorerLink} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
 
 /**
  * Check address or tx on Huobi Eco Chain.
diff --git a/packages/staker/src/helpers/ethRpc.js b/packages/staker/src/helpers/ethRpc.js
index 3188609..604a6c3 100644
--- a/packages/staker/src/helpers/ethRpc.js
+++ b/packages/staker/src/helpers/ethRpc.js
@@ -1,8 +1,8 @@
 'use strict';
 import {ETH_NODES, getRandomItem} from 'staker-freenodes';
 
-import {jsonRpcFetch} from '../helpers/jsonRpc';
-import {getConfig} from '../utils';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
+import {getConfig} from '../utils.js';
 
 let idx = 1;
 
diff --git a/packages/staker/src/helpers/format.js b/packages/staker/src/helpers/format.js
index 227ce13..ca33353 100644
--- a/packages/staker/src/helpers/format.js
+++ b/packages/staker/src/helpers/format.js
@@ -1,6 +1,6 @@
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 
-import {i18nBalance} from '../i18n';
+import {i18nBalance} from '../i18n.js';
 
 export const formatAddress = (address) => address && `${address.substring(0, 6)}..`;
 
diff --git a/packages/staker/src/matic/MaticBalances.js b/packages/staker/src/matic/MaticBalances.js
index e391f94..fbcd83c 100644
--- a/packages/staker/src/matic/MaticBalances.js
+++ b/packages/staker/src/matic/MaticBalances.js
@@ -6,7 +6,7 @@ import {t} from 'saihubot-cli-adapter/dist/i18n';
 import {CHAIN_MATIC} from 'staker-freenodes'
 import {useEthscanBalance, useEthscanTokensBalance} from 'staker-hooks';
 
-import {formatData} from '../helpers/format';
+import {formatData} from '../helpers/format.js';
 
 const i18nMatic = {
   'en': {
diff --git a/packages/staker/src/matic/saihubot-cli-skill-matic.js b/packages/staker/src/matic/saihubot-cli-skill-matic.js
index 12ef222..6553357 100644
--- a/packages/staker/src/matic/saihubot-cli-skill-matic.js
+++ b/packages/staker/src/matic/saihubot-cli-skill-matic.js
@@ -3,9 +3,9 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_MATIC, CHAIN_MATIC_EXPLORER_BLOCKSCOUT} from 'staker-freenodes'
 
-import {getConfig, parseArg, singleAddr, toArray, getExplorerLink} from '../utils';
-import {i18nAddr} from '../i18n';
-import MaticBalances from './MaticBalances';
+import {getConfig, parseArg, singleAddr, toArray, getExplorerLink} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
+import MaticBalances from './MaticBalances.js';
 
 /**
  * Check address or tx on Matic.
diff --git a/packages/staker/src/matic/utils.js b/packages/staker/src/matic/utils.js
index 932d71d..64b19d5 100644
--- a/packages/staker/src/matic/utils.js
+++ b/packages/staker/src/matic/utils.js
@@ -2,8 +2,8 @@
 
 import { MATIC_NODES, getRandomItem } from 'staker-freenodes';
 
-import {getConfig} from '../utils';
-import {jsonRpcFetch} from '../helpers/jsonRpc';
+import {getConfig} from '../utils.js';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
 
 let cachedMaticNodeUrl = '';
 
diff --git a/packages/staker/src/okexchain/saihubot-cli-skill-okexchain.js b/packages/staker/src/okexchain/saihubot-cli-skill-okexchain.js
index f57056f..ffb1412 100644
--- a/packages/staker/src/okexchain/saihubot-cli-skill-okexchain.js
+++ b/packages/staker/src/okexchain/saihubot-cli-skill-okexchain.js
@@ -3,8 +3,8 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_OKEXCHAIN, CHAIN_OKEXCHAIN_EXPLORER_OKLINK} from 'staker-freenodes'
 
-import {getConfig, singleAddr, getExplorerLink} from '../utils';
-import {i18nAddr} from '../i18n';
+import {getConfig, singleAddr, getExplorerLink} from '../utils.js';
+import {i18nAddr} from '../i18n.js';
 
 /**
  * Check address or tx on OKExChain.
diff --git a/packages/staker/src/optimism/OptimismBalances.js b/packages/staker/src/optimism/OptimismBalances.js
index b124f05..402f622 100644
--- a/packages/staker/src/optimism/OptimismBalances.js
+++ b/packages/staker/src/optimism/OptimismBalances.js
@@ -5,8 +5,8 @@ import { Text } from 'ink';
 import Table from 'ink-table';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 
-import useNativeTokenBalance from '../eth/useNativeTokenBalance';
-import {optimismFetch} from './utils'
+import useNativeTokenBalance from '../eth/useNativeTokenBalance.js';
+import {optimismFetch} from './utils.js'
 
 const i18nL2 = {
   'en': {
diff --git a/packages/staker/src/optimism/saihubot-cli-skill-optimism.js b/packages/staker/src/optimism/saihubot-cli-skill-optimism.js
index e8d000f..d1a9861 100644
--- a/packages/staker/src/optimism/saihubot-cli-skill-optimism.js
+++ b/packages/staker/src/optimism/saihubot-cli-skill-optimism.js
@@ -3,9 +3,9 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_L2_OPTIMISM, L2_OPTIMISM_EXPLORER} from 'staker-freenodes'
 
-import OptimismBalances from './OptimismBalances';
-import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils';
-import {i18nBalance} from '../i18n';
+import OptimismBalances from './OptimismBalances.js';
+import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils.js';
+import {i18nBalance} from '../i18n.js';
 
 /**
  * Check address or tx on optimism.
diff --git a/packages/staker/src/optimism/utils.js b/packages/staker/src/optimism/utils.js
index 58f87de..1fc1372 100644
--- a/packages/staker/src/optimism/utils.js
+++ b/packages/staker/src/optimism/utils.js
@@ -1,6 +1,6 @@
 import {L2_OPTIMISM, getNodeURL} from 'staker-freenodes'
 
-import {jsonRpcFetch} from '../helpers/jsonRpc';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
 
 export const optimismFetch = (fetch, body) =>
   jsonRpcFetch(fetch, getNodeURL(L2_OPTIMISM), body);
diff --git a/packages/staker/src/saihubot-cli-skill-balance.js b/packages/staker/src/saihubot-cli-skill-balance.js
index 669cce5..714f104 100644
--- a/packages/staker/src/saihubot-cli-skill-balance.js
+++ b/packages/staker/src/saihubot-cli-skill-balance.js
@@ -3,16 +3,16 @@
 import React, {useEffect, useState} from 'react';
 import {t} from 'saihubot-cli-adapter/dist/i18n';
 
-import {getConfig, parseArg, toArray} from './utils';
-import {i18nBalance} from './i18n';
-import EthBalances from './eth/EthBalances';
-import ValidatorBalances from './eth2/ValidatorBalances';
-import XdaiBalances from './xdai/XdaiBalances';
-import BscBalances from './bsc/BscBalances';
-import MaticBalances from './matic/MaticBalances';
-import ZksyncBalances from './zksync/ZksyncBalances';
-import OptimismBalances from './optimism/OptimismBalances'
-import TokensPrice from './components/TokensPrice';
+import {getConfig, parseArg, toArray} from './utils.js';
+import {i18nBalance} from './i18n.js';
+import EthBalances from './eth/EthBalances.js';
+import ValidatorBalances from './eth2/ValidatorBalances.js';
+import XdaiBalances from './xdai/XdaiBalances.js';
+import BscBalances from './bsc/BscBalances.js';
+import MaticBalances from './matic/MaticBalances.js';
+import ZksyncBalances from './zksync/ZksyncBalances.js';
+import OptimismBalances from './optimism/OptimismBalances.js'
+import TokensPrice from './components/TokensPrice.js';
 
 // support multiple account balance by comma (without space)
 // also shows validator balances
diff --git a/packages/staker/src/xdai/XdaiBalances.js b/packages/staker/src/xdai/XdaiBalances.js
index e0b852e..36e075a 100644
--- a/packages/staker/src/xdai/XdaiBalances.js
+++ b/packages/staker/src/xdai/XdaiBalances.js
@@ -6,7 +6,7 @@ import {t} from 'saihubot-cli-adapter/dist/i18n';
 import {CHAIN_XDAI} from 'staker-freenodes'
 import {useEthscanBalance, useEthscanTokensBalance} from 'staker-hooks';
 
-import {formatData} from '../helpers/format';
+import {formatData} from '../helpers/format.js';
 
 const i18nXdai = {
   'en': {
diff --git a/packages/staker/src/xdai/saihubot-cli-skill-xdai.js b/packages/staker/src/xdai/saihubot-cli-skill-xdai.js
index 21862e3..dcb13b9 100644
--- a/packages/staker/src/xdai/saihubot-cli-skill-xdai.js
+++ b/packages/staker/src/xdai/saihubot-cli-skill-xdai.js
@@ -4,11 +4,11 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import { EXPLORER_XDAI, CHAIN_XDAI_EXPLORER_BLOCKSCOUT} from 'staker-freenodes'
 
-import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils';
-import {rpcLastBlock} from '../helpers/ethRpc';
-import {i18nAddr, i18nBalance} from '../i18n';
-import XdaiBalances from './XdaiBalances';
-import {xdaiFetch} from './utils'
+import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils.js';
+import {rpcLastBlock} from '../helpers/ethRpc.js';
+import {i18nAddr, i18nBalance} from '../i18n.js';
+import XdaiBalances from './XdaiBalances.js';
+import {xdaiFetch} from './utils.js'
 
 /**
  * Check address or tx on xDai.
diff --git a/packages/staker/src/xdai/utils.js b/packages/staker/src/xdai/utils.js
index c8836d4..a0ba594 100644
--- a/packages/staker/src/xdai/utils.js
+++ b/packages/staker/src/xdai/utils.js
@@ -1,8 +1,8 @@
 'use strict';
 import {XDAI_NODES, getRandomItem} from 'staker-freenodes'
 
-import {getConfig} from '../utils';
-import {jsonRpcFetch} from '../helpers/jsonRpc';
+import {getConfig} from '../utils.js';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
 
 // ==== xDai Chain JSON RPC ===
 
diff --git a/packages/staker/src/zksync/ZksyncBalances.js b/packages/staker/src/zksync/ZksyncBalances.js
index 63337c9..feed142 100644
--- a/packages/staker/src/zksync/ZksyncBalances.js
+++ b/packages/staker/src/zksync/ZksyncBalances.js
@@ -4,9 +4,9 @@ import { Text } from 'ink';
 import Table from 'ink-table';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 
-import {rpcTokens, rpcZkSyncBalance, zksyncFetch} from './utils';
+import {rpcTokens, rpcZkSyncBalance, zksyncFetch} from './utils.js';
 
-import {formatData} from '../helpers/format';
+import {formatData} from '../helpers/format.js';
 
 const i18nL2 = {
   'en': {
diff --git a/packages/staker/src/zksync/saihubot-cli-skill-zksync.js b/packages/staker/src/zksync/saihubot-cli-skill-zksync.js
index 8db1f69..3a50242 100644
--- a/packages/staker/src/zksync/saihubot-cli-skill-zksync.js
+++ b/packages/staker/src/zksync/saihubot-cli-skill-zksync.js
@@ -3,10 +3,10 @@ import React from 'react';
 import { t } from 'saihubot-cli-adapter/dist/i18n';
 import {EXPLORER_L2_ZKSYNC, L2_ZKSYNC_EXPLORER} from 'staker-freenodes'
 
-import ZksyncBalances from './ZksyncBalances';
+import ZksyncBalances from './ZksyncBalances.js';
 
-import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils';
-import {i18nBalance} from '../i18n';
+import {getConfig, parseArg, toArray, singleAddr, getExplorerLink} from '../utils.js';
+import {i18nBalance} from '../i18n.js';
 
 /**
  * Check address or tx on zkSync.
diff --git a/packages/staker/src/zksync/utils.js b/packages/staker/src/zksync/utils.js
index 2504652..b306839 100644
--- a/packages/staker/src/zksync/utils.js
+++ b/packages/staker/src/zksync/utils.js
@@ -1,7 +1,7 @@
 'use strict';
 
-import {getConfig} from '../utils';
-import {jsonRpcFetch} from '../helpers/jsonRpc';
+import {getConfig} from '../utils.js';
+import {jsonRpcFetch} from '../helpers/jsonRpc.js';
 
 // ==== zkSync JSON RPC ===
 // https://zksync.io/api/v0.1.html