diff --git a/texttospeech/test/.eslintrc.yml b/texttospeech/test/.eslintrc.yml
index ca3bdd9dbc..ed97d539c0 100644
--- a/texttospeech/test/.eslintrc.yml
+++ b/texttospeech/test/.eslintrc.yml
@@ -1,4 +1 @@
 ---
-env:
-  mocha: true
-  
\ No newline at end of file
diff --git a/texttospeech/test/audioProfile.test.js b/texttospeech/test/audioProfile.test.js
index fd0d6f54ce..2a0c3c84d3 100644
--- a/texttospeech/test/audioProfile.test.js
+++ b/texttospeech/test/audioProfile.test.js
@@ -16,6 +16,7 @@
 
 const fs = require('fs');
 const {assert} = require('chai');
+const {describe, it, after} = require('mocha');
 const cp = require('child_process');
 
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
diff --git a/texttospeech/test/listVoices.test.js b/texttospeech/test/listVoices.test.js
index 8fceb1e69d..7af1e9579e 100644
--- a/texttospeech/test/listVoices.test.js
+++ b/texttospeech/test/listVoices.test.js
@@ -15,6 +15,7 @@
 'use strict';
 
 const {assert} = require('chai');
+const {describe, it} = require('mocha');
 const cp = require('child_process');
 
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
diff --git a/texttospeech/test/quickstart.test.js b/texttospeech/test/quickstart.test.js
index 14fc10230e..cd1460c7b5 100644
--- a/texttospeech/test/quickstart.test.js
+++ b/texttospeech/test/quickstart.test.js
@@ -16,6 +16,7 @@
 
 const fs = require('fs');
 const {assert} = require('chai');
+const {describe, it, after} = require('mocha');
 const cp = require('child_process');
 
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
@@ -31,7 +32,7 @@ describe('quickstart', () => {
     }
   });
 
-  it('should synthesize speech to local mp3 file', async () => {
+  it('should synthesize speech to local mp3 file', () => {
     assert.strictEqual(fs.existsSync(outputFile), false);
     const stdout = execSync('node quickstart');
     assert.match(stdout, /Audio content written to file: output.mp3/);
diff --git a/texttospeech/test/ssmlAddresses.test.js b/texttospeech/test/ssmlAddresses.test.js
index 9995169d0a..55bc31724e 100644
--- a/texttospeech/test/ssmlAddresses.test.js
+++ b/texttospeech/test/ssmlAddresses.test.js
@@ -16,6 +16,7 @@
 
 const fs = require('fs');
 const {assert} = require('chai');
+const {describe, it, before, after} = require('mocha');
 const cp = require('child_process');
 
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
diff --git a/texttospeech/test/synthesize.test.js b/texttospeech/test/synthesize.test.js
index 3e2b32dc1d..ad50a48547 100644
--- a/texttospeech/test/synthesize.test.js
+++ b/texttospeech/test/synthesize.test.js
@@ -17,6 +17,7 @@
 const fs = require('fs');
 const path = require('path');
 const {assert} = require('chai');
+const {describe, it, afterEach} = require('mocha');
 const cp = require('child_process');
 
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});