diff --git a/lib/contributors/github.test.js b/lib/contributors/github.test.js
index cafb2f6..2acbed8 100644
--- a/lib/contributors/github.test.js
+++ b/lib/contributors/github.test.js
@@ -2,18 +2,18 @@ import test from 'ava';
 import nock from 'nock';
 import getUserInfo from './github';
 
-test.cb('should handle errors', function (t) {
+test.cb('should handle errors', t => {
   nock('https://api.github.com')
     .get('/users/nodisplayname')
     .replyWithError(404);
 
-  getUserInfo('nodisplayname', function (err) {
+  getUserInfo('nodisplayname', err => {
     t.truthy(err);
     t.end();
   });
 });
 
-test.cb('should fill in the name when null is returned', function (t) {
+test.cb('should fill in the name when null is returned', t => {
   nock('https://api.github.com')
     .get('/users/nodisplayname')
     .reply(200, {
@@ -23,14 +23,14 @@ test.cb('should fill in the name when null is returned', function (t) {
       html_url: 'https://github.com/nodisplayname'
     });
 
-  getUserInfo('nodisplayname', function (err, info) {
+  getUserInfo('nodisplayname', (err, info) => {
     t.falsy(err);
     t.is(info.name, 'nodisplayname');
     t.end();
   });
 });
 
-test.cb('should fill in the name when an empty string is returned', function (t) {
+test.cb('should fill in the name when an empty string is returned', t => {
   nock('https://api.github.com')
     .get('/users/nodisplayname')
     .reply(200, {
@@ -40,7 +40,7 @@ test.cb('should fill in the name when an empty string is returned', function (t)
       html_url: 'https://github.com/nodisplayname'
     });
 
-  getUserInfo('nodisplayname', function (err, info) {
+  getUserInfo('nodisplayname', (err, info) => {
     t.falsy(err);
     t.is(info.name, 'nodisplayname');
     t.end();