diff --git a/contracts/exchange/test/lib_exchange_rich_error_decoder.ts b/contracts/exchange/test/lib_exchange_rich_error_decoder.ts
index 7dab8e6742..8c3ce7e660 100644
--- a/contracts/exchange/test/lib_exchange_rich_error_decoder.ts
+++ b/contracts/exchange/test/lib_exchange_rich_error_decoder.ts
@@ -1,11 +1,4 @@
-import {
-    addressUtils,
-    blockchainTests,
-    expect,
-    hexRandom,
-    OrderStatus,
-    orderUtils,
-} from '@0x/contracts-test-utils';
+import { addressUtils, blockchainTests, expect, hexRandom, OrderStatus, orderUtils } from '@0x/contracts-test-utils';
 import { ExchangeRevertErrors, generatePseudoRandomSalt } from '@0x/order-utils';
 import { RevertError } from '@0x/utils';
 import * as _ from 'lodash';
diff --git a/contracts/exchange/test/signature_validator.ts b/contracts/exchange/test/signature_validator.ts
index 80c2140569..3a19671a2d 100644
--- a/contracts/exchange/test/signature_validator.ts
+++ b/contracts/exchange/test/signature_validator.ts
@@ -10,7 +10,6 @@ import {
     orderUtils,
     TransactionFactory,
 } from '@0x/contracts-test-utils';
-import { BlockchainLifecycle } from '@0x/dev-utils';
 import {
     assetDataUtils,
     ExchangeRevertErrors,