7 files changed, 7 insertions, 7 deletions
diff --git a/packages/0x.js/src/utils/abi_decoder.ts b/packages/0x.js/src/utils/abi_decoder.ts
index 2d4e92558..bbd2a0b1d 100644
--- a/packages/0x.js/src/utils/abi_decoder.ts
+++ b/packages/0x.js/src/utils/abi_decoder.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
 import * as SolidityCoder from 'web3/lib/solidity/coder';
diff --git a/packages/0x.js/src/utils/assert.ts b/packages/0x.js/src/utils/assert.ts
index b391a3347..cf20e7ed7 100644
--- a/packages/0x.js/src/utils/assert.ts
+++ b/packages/0x.js/src/utils/assert.ts
@@ -4,7 +4,7 @@ import { assert as sharedAssert } from '@0xproject/assert';
 import { Schema } from '@0xproject/json-schemas';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 // tslint:disable-next-line:no-unused-variable
-import * as BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { ECSignature } from '../types';
diff --git a/packages/0x.js/src/utils/constants.ts b/packages/0x.js/src/utils/constants.ts
index 6001e1c7f..06beec8e2 100644
--- a/packages/0x.js/src/utils/constants.ts
+++ b/packages/0x.js/src/utils/constants.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 
 export const constants = {
     NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
diff --git a/packages/0x.js/src/utils/exchange_transfer_simulator.ts b/packages/0x.js/src/utils/exchange_transfer_simulator.ts
index 575a2d3d2..662cd210c 100644
--- a/packages/0x.js/src/utils/exchange_transfer_simulator.ts
+++ b/packages/0x.js/src/utils/exchange_transfer_simulator.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { TokenWrapper } from '../contract_wrappers/token_wrapper';
diff --git a/packages/0x.js/src/utils/order_state_utils.ts b/packages/0x.js/src/utils/order_state_utils.ts
index 5674528d5..b7a55ff42 100644
--- a/packages/0x.js/src/utils/order_state_utils.ts
+++ b/packages/0x.js/src/utils/order_state_utils.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { ZeroEx } from '../0x';
diff --git a/packages/0x.js/src/utils/order_validation_utils.ts b/packages/0x.js/src/utils/order_validation_utils.ts
index ebe4c49df..917d414c8 100644
--- a/packages/0x.js/src/utils/order_validation_utils.ts
+++ b/packages/0x.js/src/utils/order_validation_utils.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import * as _ from 'lodash';
 
 import { ZeroEx } from '../0x';
diff --git a/packages/0x.js/src/utils/utils.ts b/packages/0x.js/src/utils/utils.ts
index 09de6ce52..e42a1a853 100644
--- a/packages/0x.js/src/utils/utils.ts
+++ b/packages/0x.js/src/utils/utils.ts
@@ -1,4 +1,4 @@
-import BigNumber from 'bignumber.js';
+import { BigNumber } from '@0xproject/utils';
 import BN = require('bn.js');
 import * as ethABI from 'ethereumjs-abi';
 import * as ethUtil from 'ethereumjs-util';