diff --git a/src/test/helpers/mocha-bootstrap.ts b/src/test/helpers/mocha-bootstrap.ts
index c71d8e04a42..9f9367327e8 100644
--- a/src/test/helpers/mocha-bootstrap.ts
+++ b/src/test/helpers/mocha-bootstrap.ts
@@ -1,6 +1,6 @@
 import * as chai from "chai";
-import * as chaiAsPromised from "chai-as-promised";
-import * as sinonChai from "sinon-chai";
+const chaiAsPromised = require("chai-as-promised");
+const sinonChai = require("sinon-chai");
 
 chai.use(chaiAsPromised);
 chai.use(sinonChai);