diff --git a/package.json b/package.json
index 28ad6c5..9aacabc 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,6 @@
   "ava": {
     "files": [
       "test/**/*.test.js"
-    ],
-    "helpers": [
-      "test/helpers/**/*"
     ]
   },
   "bugs": {
@@ -26,7 +23,7 @@
     "read-pkg": "^5.0.0"
   },
   "devDependencies": {
-    "ava": "^2.0.0",
+    "ava": "^3.1.0",
     "clear-module": "^4.0.0",
     "codecov": "^3.1.0",
     "dockerode": "^3.0.0",
diff --git a/test/get-pkg.test.js b/test/get-pkg.test.js
index 1cf2dc9..b1cd4a5 100644
--- a/test/get-pkg.test.js
+++ b/test/get-pkg.test.js
@@ -1,8 +1,8 @@
-import path from 'path';
-import test from 'ava';
-import {outputJson, writeFile} from 'fs-extra';
-import tempy from 'tempy';
-import getPkg from '../lib/get-pkg';
+const path = require('path');
+const test = require('ava');
+const {outputJson, writeFile} = require('fs-extra');
+const tempy = require('tempy');
+const getPkg = require('../lib/get-pkg');
 
 test('Verify name and version then return parsed package.json', async t => {
   const cwd = tempy.directory();
diff --git a/test/helpers/mockserver.js b/test/helpers/mockserver.js
index 72ee155..51db154 100644
--- a/test/helpers/mockserver.js
+++ b/test/helpers/mockserver.js
@@ -1,8 +1,8 @@
-import Docker from 'dockerode';
-import getStream from 'get-stream';
-import got from 'got';
-import pRetry from 'p-retry';
-import {mockServerClient} from 'mockserver-client';
+const Docker = require('dockerode');
+const getStream = require('get-stream');
+const got = require('got');
+const pRetry = require('p-retry');
+const {mockServerClient} = require('mockserver-client');
 
 const IMAGE = 'jamesdbloom/mockserver:latest';
 const MOCK_SERVER_PORT = 1080;
@@ -100,4 +100,4 @@ function verify(expectation) {
   return client.verify(expectation);
 }
 
-export default {start, stop, mock, verify, url};
+module.exports = {start, stop, mock, verify, url};
diff --git a/test/integration.test.js b/test/integration.test.js
index 1b62b9c..eee40dc 100644
--- a/test/integration.test.js
+++ b/test/integration.test.js
@@ -1,12 +1,12 @@
-import path from 'path';
-import test from 'ava';
-import {outputJson, readJson, pathExists} from 'fs-extra';
-import execa from 'execa';
-import {spy} from 'sinon';
-import tempy from 'tempy';
-import clearModule from 'clear-module';
-import {WritableStreamBuffer} from 'stream-buffers';
-import mockServer from './helpers/mockserver';
+const path = require('path');
+const test = require('ava');
+const {outputJson, readJson, pathExists} = require('fs-extra');
+const execa = require('execa');
+const {spy} = require('sinon');
+const tempy = require('tempy');
+const clearModule = require('clear-module');
+const {WritableStreamBuffer} = require('stream-buffers');
+const mockServer = require('./helpers/mockserver');
 
 const env = {
   GITHUB_URL: mockServer.url,
diff --git a/test/prepare.test.js b/test/prepare.test.js
index b33b119..10426d8 100644
--- a/test/prepare.test.js
+++ b/test/prepare.test.js
@@ -1,11 +1,11 @@
-import path from 'path';
-import test from 'ava';
-import {outputJson, readJson, outputFile, readFile} from 'fs-extra';
-import tempy from 'tempy';
-import execa from 'execa';
-import {stub} from 'sinon';
-import {WritableStreamBuffer} from 'stream-buffers';
-import prepare from '../lib/prepare';
+const path = require('path');
+const test = require('ava');
+const {outputJson, readJson, outputFile, readFile} = require('fs-extra');
+const tempy = require('tempy');
+const execa = require('execa');
+const {stub} = require('sinon');
+const {WritableStreamBuffer} = require('stream-buffers');
+const prepare = require('../lib/prepare');
 
 test.beforeEach(t => {
   t.context.log = stub();
diff --git a/test/verify.test.js b/test/verify.test.js
index 9f50758..877c50e 100644
--- a/test/verify.test.js
+++ b/test/verify.test.js
@@ -1,6 +1,6 @@
-import test from 'ava';
-import tempy from 'tempy';
-import verify from '../lib/verify';
+const test = require('ava');
+const tempy = require('tempy');
+const verify = require('../lib/verify');
 
 test('Verify "ATOM_ACCESS_TOKEN" is set', async t => {
   t.deepEqual(await verify({}, {env: {ATOM_ACCESS_TOKEN: 'my_token'}}), []);