2 files changed, 2 insertions, 2 deletions
diff --git a/packages/0x.js/src/order_watcher/event_watcher.ts b/packages/0x.js/src/order_watcher/event_watcher.ts
index 545b352a4..de5a99a46 100644
--- a/packages/0x.js/src/order_watcher/event_watcher.ts
+++ b/packages/0x.js/src/order_watcher/event_watcher.ts
@@ -1,10 +1,10 @@
-import { assert } from '@0xproject/order-utils';
 import { BlockParamLiteral, LogEntry } from '@0xproject/types';
 import { intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as _ from 'lodash';
 
 import { EventWatcherCallback, ZeroExError } from '../types';
+import { assert } from '../utils/assert';
 
 const DEFAULT_EVENT_POLLING_INTERVAL_MS = 200;
 
diff --git a/packages/0x.js/src/order_watcher/order_state_watcher.ts b/packages/0x.js/src/order_watcher/order_state_watcher.ts
index 008db6bc4..a9df8ac9d 100644
--- a/packages/0x.js/src/order_watcher/order_state_watcher.ts
+++ b/packages/0x.js/src/order_watcher/order_state_watcher.ts
@@ -1,5 +1,4 @@
 import { schemas } from '@0xproject/json-schemas';
-import { assert } from '@0xproject/order-utils';
 import { BlockParamLiteral, LogWithDecodedArgs, SignedOrder } from '@0xproject/types';
 import { AbiDecoder, intervalUtils } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
@@ -34,6 +33,7 @@ import {
     OrderStateWatcherConfig,
     ZeroExError,
 } from '../types';
+import { assert } from '../utils/assert';
 import { OrderStateUtils } from '../utils/order_state_utils';
 import { utils } from '../utils/utils';