3 files changed, 3 insertions, 3 deletions
diff --git a/packages/contracts/test/ts/exchange/core.ts b/packages/contracts/test/ts/exchange/core.ts
index 19887a3e6..770ef0c43 100644
--- a/packages/contracts/test/ts/exchange/core.ts
+++ b/packages/contracts/test/ts/exchange/core.ts
@@ -1,5 +1,5 @@
 import { ZeroEx } from '0x.js';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
 import * as Web3 from 'web3';
diff --git a/packages/contracts/test/ts/exchange/helpers.ts b/packages/contracts/test/ts/exchange/helpers.ts
index 5c5b656b5..95f68e419 100644
--- a/packages/contracts/test/ts/exchange/helpers.ts
+++ b/packages/contracts/test/ts/exchange/helpers.ts
@@ -1,5 +1,5 @@
 import { ZeroEx } from '0x.js';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import ethUtil = require('ethereumjs-util');
 
diff --git a/packages/contracts/test/ts/exchange/wrapper.ts b/packages/contracts/test/ts/exchange/wrapper.ts
index 77cd03388..e69e08bcf 100644
--- a/packages/contracts/test/ts/exchange/wrapper.ts
+++ b/packages/contracts/test/ts/exchange/wrapper.ts
@@ -1,5 +1,5 @@
 import { ZeroEx } from '0x.js';
-import { BigNumber } from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';