diff --git a/test/ERC20Mixer.test.js b/test/ERC20Mixer.test.js
index ad7e07b..8c8ec24 100644
--- a/test/ERC20Mixer.test.js
+++ b/test/ERC20Mixer.test.js
@@ -5,7 +5,7 @@ require('chai')
   .should()
 const fs = require('fs')
 
-const { toBN, toHex } = require('web3-utils')
+const { toBN } = require('web3-utils')
 const { takeSnapshot, revertSnapshot } = require('../lib/ganacheHelper')
 
 const Mixer = artifacts.require('./ERC20Mixer.sol')
diff --git a/test/ETHMixer.test.js b/test/ETHMixer.test.js
index 9d01f22..12af43f 100644
--- a/test/ETHMixer.test.js
+++ b/test/ETHMixer.test.js
@@ -5,7 +5,7 @@ require('chai')
   .should()
 const fs = require('fs')
 
-const { toBN, toHex, randomHex } = require('web3-utils')
+const { toBN, randomHex } = require('web3-utils')
 const { takeSnapshot, revertSnapshot } = require('../lib/ganacheHelper')
 
 const Mixer = artifacts.require('./ETHMixer.sol')