6 files changed, 6 insertions, 10 deletions
diff --git a/packages/contracts/util/balances.ts b/packages/contracts/util/balances.ts
index eaeecf1c4..6a1659ab1 100644
--- a/packages/contracts/util/balances.ts
+++ b/packages/contracts/util/balances.ts
@@ -1,11 +1,8 @@
-import { bigNumberConfigs } from '@0xproject/utils';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { BalancesByOwner, ContractInstance } from './types';
 
-bigNumberConfigs.configure();
-
 export class Balances {
     private _tokenContractInstances: ContractInstance[];
     private _ownerAddresses: string[];
diff --git a/packages/contracts/util/exchange_wrapper.ts b/packages/contracts/util/exchange_wrapper.ts
index 200b0fb1e..ca79f92c4 100644
--- a/packages/contracts/util/exchange_wrapper.ts
+++ b/packages/contracts/util/exchange_wrapper.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { formatters } from './formatters';
diff --git a/packages/contracts/util/formatters.ts b/packages/contracts/util/formatters.ts
index ab3558ee7..0d0ef6df4 100644
--- a/packages/contracts/util/formatters.ts
+++ b/packages/contracts/util/formatters.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { Order } from './order';
diff --git a/packages/contracts/util/order.ts b/packages/contracts/util/order.ts
index 2427ffb87..e202d485b 100644
--- a/packages/contracts/util/order.ts
+++ b/packages/contracts/util/order.ts
@@ -1,5 +1,4 @@
-import { promisify } from '@0xproject/utils';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber, promisify } from '@0xproject/utils';
 import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
 import Web3 = require('web3');
diff --git a/packages/contracts/util/order_factory.ts b/packages/contracts/util/order_factory.ts
index 3ae06a335..a45877de0 100644
--- a/packages/contracts/util/order_factory.ts
+++ b/packages/contracts/util/order_factory.ts
@@ -1,5 +1,5 @@
 import { ZeroEx } from '0x.js';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { Order } from './order';
diff --git a/packages/contracts/util/types.ts b/packages/contracts/util/types.ts
index 9b225cb0b..58a7e6a2d 100644
--- a/packages/contracts/util/types.ts
+++ b/packages/contracts/util/types.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as Web3 from 'web3';
 
 export interface BalancesByOwner {