4 files changed, 5 insertions, 1 deletions
diff --git a/packages/order-utils/package.json b/packages/order-utils/package.json
index 35a486a6b..63caaec34 100644
--- a/packages/order-utils/package.json
+++ b/packages/order-utils/package.json
@@ -2,7 +2,7 @@
     "name": "@0xproject/order-utils",
     "version": "0.0.4",
     "engines": {
-        "node" : ">=6.12"
+        "node": ">=6.12"
     },
     "description": "0x order utils",
     "main": "lib/src/index.js",
@@ -52,6 +52,7 @@
         "chai-bignumber": "^2.0.1",
         "copyfiles": "^1.2.0",
         "dirty-chai": "^2.0.1",
+        "make-promises-safe": "^1.1.0",
         "mocha": "^4.0.1",
         "npm-run-all": "^4.1.2",
         "shx": "^0.2.2",
diff --git a/packages/order-utils/test/assert_test.ts b/packages/order-utils/test/assert_test.ts
index dfd19bf86..033fd6732 100644
--- a/packages/order-utils/test/assert_test.ts
+++ b/packages/order-utils/test/assert_test.ts
@@ -1,5 +1,6 @@
 import { web3Factory } from '@0xproject/dev-utils';
 import * as chai from 'chai';
+import 'make-promises-safe';
 import 'mocha';
 
 import { assert } from '../src/assert';
diff --git a/packages/order-utils/test/order_hash_test.ts b/packages/order-utils/test/order_hash_test.ts
index b6dda1a43..db5489509 100644
--- a/packages/order-utils/test/order_hash_test.ts
+++ b/packages/order-utils/test/order_hash_test.ts
@@ -1,6 +1,7 @@
 import { web3Factory } from '@0xproject/dev-utils';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
+import 'make-promises-safe';
 import 'mocha';
 
 import { constants, getOrderHashHex } from '../src';
diff --git a/packages/order-utils/test/signature_utils_test.ts b/packages/order-utils/test/signature_utils_test.ts
index 553ec2e53..4b4de9217 100644
--- a/packages/order-utils/test/signature_utils_test.ts
+++ b/packages/order-utils/test/signature_utils_test.ts
@@ -3,6 +3,7 @@ import { JSONRPCErrorCallback, JSONRPCRequestPayload } from '@0xproject/types';
 import { BigNumber } from '@0xproject/utils';
 import * as chai from 'chai';
 import * as _ from 'lodash';
+import 'make-promises-safe';
 import 'mocha';
 import * as Sinon from 'sinon';