diff --git a/dist/es/hash.js b/dist/es/hash.js
index ccb4e6b..b0ecb42 100644
--- a/dist/es/hash.js
+++ b/dist/es/hash.js
@@ -1,15 +1,13 @@
-import { web3 } from './util';
+import { soliditySha3 } from 'web3-utils';
 
 export function keccak256(params) {
-    var _web3$utils;
-
     if (!Array.isArray(params)) {
         params = [{
             type: 'string',
             value: params
         }];
     }
-    return (_web3$utils = web3.utils).soliditySha3.apply(_web3$utils, params);
+    return soliditySha3.apply(undefined, params);
 }
 
 export var SIGN_PREFIX = '\x19Ethereum Signed Message:\n32';
\ No newline at end of file
diff --git a/dist/es/tx-data-by-compiled.js b/dist/es/tx-data-by-compiled.js
index df321b3..cba29df 100644
--- a/dist/es/tx-data-by-compiled.js
+++ b/dist/es/tx-data-by-compiled.js
@@ -1,11 +1,11 @@
-import { web3 } from './util';
+import * as Web3EthContract from 'web3-eth-contract';
 
 export default function txDataByCompiled(abi, bytecode, args) {
 
     // solc returns a string which is often passed instead of the json
     if (typeof abi === 'string') abi = JSON.parse(abi);
 
-    var web3Contract = new web3.eth.Contract(abi, null, {
+    var web3Contract = new Web3EthContract['default'](abi, null, {
         data: '0x' + bytecode
     });
 
diff --git a/dist/es/util.js b/dist/es/util.js
index c55377a..e31363c 100644
--- a/dist/es/util.js
+++ b/dist/es/util.js
@@ -1,7 +1,3 @@
-import Web3 from 'web3';
-
-export var web3 = new Web3();
-
 export function removeTrailing0x(str) {
     if (str.startsWith('0x')) return str.substring(2);else return str;
 }
diff --git a/dist/lib/hash.js b/dist/lib/hash.js
index 8fdcee0..114bf79 100644
--- a/dist/lib/hash.js
+++ b/dist/lib/hash.js
@@ -11,20 +11,18 @@ var _toConsumableArray3 = _interopRequireDefault(_toConsumableArray2);
 
 exports.keccak256 = keccak256;
 
-var _util = require('./util');
+var _web3Utils = require('web3-utils');
 
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
 function keccak256(params) {
-    var _web3$utils;
-
     if (!Array.isArray(params)) {
         params = [{
             type: 'string',
             value: params
         }];
     }
-    return (_web3$utils = _util.web3.utils).soliditySha3.apply(_web3$utils, (0, _toConsumableArray3['default'])(params));
+    return _web3Utils.soliditySha3.apply(undefined, (0, _toConsumableArray3['default'])(params));
 }
 
 var SIGN_PREFIX = exports.SIGN_PREFIX = '\x19Ethereum Signed Message:\n32';
\ No newline at end of file
diff --git a/dist/lib/tx-data-by-compiled.js b/dist/lib/tx-data-by-compiled.js
index 54fed62..da947f0 100644
--- a/dist/lib/tx-data-by-compiled.js
+++ b/dist/lib/tx-data-by-compiled.js
@@ -5,14 +5,18 @@ Object.defineProperty(exports, "__esModule", {
 });
 exports['default'] = txDataByCompiled;
 
-var _util = require('./util');
+var _web3EthContract = require('web3-eth-contract');
+
+var Web3EthContract = _interopRequireWildcard(_web3EthContract);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }
 
 function txDataByCompiled(abi, bytecode, args) {
 
     // solc returns a string which is often passed instead of the json
     if (typeof abi === 'string') abi = JSON.parse(abi);
 
-    var web3Contract = new _util.web3.eth.Contract(abi, null, {
+    var web3Contract = new Web3EthContract['default'](abi, null, {
         data: '0x' + bytecode
     });
 
diff --git a/dist/lib/util.js b/dist/lib/util.js
index d2df9d4..1f83c67 100644
--- a/dist/lib/util.js
+++ b/dist/lib/util.js
@@ -3,18 +3,8 @@
 Object.defineProperty(exports, "__esModule", {
     value: true
 });
-exports.web3 = undefined;
 exports.removeTrailing0x = removeTrailing0x;
 exports.addTrailing0x = addTrailing0x;
-
-var _web = require('web3');
-
-var _web2 = _interopRequireDefault(_web);
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-var web3 = exports.web3 = new _web2['default']();
-
 function removeTrailing0x(str) {
     if (str.startsWith('0x')) return str.substring(2);else return str;
 }
diff --git a/package.json b/package.json
index f36fb5b..53356dc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eth-crypto",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "Cryptographic functions for ethereum and how to use them with web3 and solidity",
   "keywords": [
     "ethereum",