diff --git a/lib/push-notifications.js b/lib/push-notifications.js
index d6664cf..856633f 100644
--- a/lib/push-notifications.js
+++ b/lib/push-notifications.js
@@ -1,7 +1,5 @@
 "use strict";
 
-var _sendGCM = _interopRequireDefault(require("./sendGCM"));
-
 var _sendAPN = _interopRequireDefault(require("./sendAPN"));
 
 var _sendFCM = _interopRequireDefault(require("./sendFCM"));
@@ -25,7 +23,7 @@ function _defineProperty(obj, key, value) { if (key in obj) { Object.definePrope
 class PN {
   constructor(options) {
     this.setOptions(options);
-    this.useFcmOrGcmMethod = this.settings.isLegacyGCM ? _constants.GCM_METHOD : _constants.FCM_METHOD;
+    this.useFcmOrGcmMethod = _constants.FCM_METHOD;
   }
 
   setOptions(opts) {
@@ -108,7 +106,6 @@ class PN {
 
   send(_regIds, data, callback) {
     const promises = [];
-    const regIdsGCM = [];
     const regIdsFCM = [];
     const regIdsAPN = [];
     const regIdsWNS = [];
@@ -124,8 +121,6 @@ class PN {
 
       if (pushMethod === _constants.WEB_METHOD) {
         regIdsWebPush.push(regId);
-      } else if (pushMethod === _constants.GCM_METHOD) {
-        regIdsGCM.push(regId);
       } else if (pushMethod === _constants.FCM_METHOD) {
         regIdsFCM.push(regId);
       } else if (pushMethod === _constants.WNS_METHOD) {
@@ -140,12 +135,6 @@ class PN {
     });
 
     try {
-      // Android GCM / FCM (Android/iOS) Legacy
-      if (regIdsGCM.length > 0) {
-        promises.push(this.sendWith(_sendGCM.default, regIdsGCM, data));
-      } // FCM (Android/iOS)
-
-
       if (regIdsFCM.length > 0) {
         promises.push(this.sendWith(_sendFCM.default, regIdsFCM, data));
       } // iOS APN
@@ -219,6 +208,5 @@ module.exports = PN;
 module.exports.WEB = _constants.WEB_METHOD;
 module.exports.WNS = _constants.WNS_METHOD;
 module.exports.ADM = _constants.ADM_METHOD;
-module.exports.GCM = _constants.GCM_METHOD;
 module.exports.FCM = _constants.FCM_METHOD;
 module.exports.APN = _constants.APN_METHOD;
\ No newline at end of file
diff --git a/src/push-notifications.js b/src/push-notifications.js
index 5ec49e6..1687973 100644
--- a/src/push-notifications.js
+++ b/src/push-notifications.js
@@ -1,6 +1,5 @@
 /* eslint-disable import/no-import-module-exports */
 
-import sendGCM from './sendGCM';
 import APN from './sendAPN';
 import sendFCM from './sendFCM';
 import sendADM from './sendADM';
@@ -13,7 +12,6 @@ import {
   WEB_METHOD,
   WNS_METHOD,
   ADM_METHOD,
-  GCM_METHOD,
   APN_METHOD,
   FCM_METHOD,
 } from './constants';
@@ -21,9 +19,7 @@ import {
 class PN {
   constructor(options) {
     this.setOptions(options);
-    this.useFcmOrGcmMethod = this.settings.isLegacyGCM
-      ? GCM_METHOD
-      : FCM_METHOD;
+    this.useFcmOrGcmMethod = FCM_METHOD;
   }
 
   setOptions(opts) {
@@ -90,7 +86,6 @@ class PN {
 
   send(_regIds, data, callback) {
     const promises = [];
-    const regIdsGCM = [];
     const regIdsFCM = [];
     const regIdsAPN = [];
     const regIdsWNS = [];
@@ -105,8 +100,6 @@ class PN {
 
       if (pushMethod === WEB_METHOD) {
         regIdsWebPush.push(regId);
-      } else if (pushMethod === GCM_METHOD) {
-        regIdsGCM.push(regId);
       } else if (pushMethod === FCM_METHOD) {
         regIdsFCM.push(regId);
       } else if (pushMethod === WNS_METHOD) {
@@ -121,11 +114,6 @@ class PN {
     });
 
     try {
-      // Android GCM / FCM (Android/iOS) Legacy
-      if (regIdsGCM.length > 0) {
-        promises.push(this.sendWith(sendGCM, regIdsGCM, data));
-      }
-
       // FCM (Android/iOS)
       if (regIdsFCM.length > 0) {
         promises.push(this.sendWith(sendFCM, regIdsFCM, data));
@@ -203,6 +191,5 @@ module.exports = PN;
 module.exports.WEB = WEB_METHOD;
 module.exports.WNS = WNS_METHOD;
 module.exports.ADM = ADM_METHOD;
-module.exports.GCM = GCM_METHOD;
 module.exports.FCM = FCM_METHOD;
 module.exports.APN = APN_METHOD;
diff --git a/src/utils/tools.js b/src/utils/tools.js
index 4ea4fec..095ca96 100644
--- a/src/utils/tools.js
+++ b/src/utils/tools.js
@@ -75,30 +75,6 @@ const containsValidRecipients = R.either(
 const propValueToSingletonArray = (propName) =>
   R.compose(R.of, R.prop(propName));
 
-const buildGcmNotification = (data) => {
-  const notification = data.fcm_notification || {
-    title: data.title,
-    body: data.body,
-    icon: data.icon,
-    image: data.image,
-    picture: data.picture,
-    style: data.style,
-    sound: data.sound,
-    badge: data.badge,
-    tag: data.tag,
-    color: data.color,
-    click_action: data.clickAction || data.category,
-    body_loc_key: data.locKey,
-    body_loc_args: toJSONorUndefined(data.locArgs),
-    title_loc_key: data.titleLocKey,
-    title_loc_args: toJSONorUndefined(data.titleLocArgs),
-    android_channel_id: data.android_channel_id,
-    notification_count: data.notificationCount || data.badge,
-  };
-
-  return notification;
-};
-
 const buildApnsMessage = (data) => {
   const message = new ApnsMessage({
     retryLimit: data.retries || -1,
diff --git a/test/push-notifications/regIds.js b/test/push-notifications/regIds.js
index 556d0a1..443a67e 100644
--- a/test/push-notifications/regIds.js
+++ b/test/push-notifications/regIds.js
@@ -3,7 +3,6 @@
 import { expect } from 'chai'; // eslint-disable-line import/no-extraneous-dependencies
 import sinon from 'sinon'; // eslint-disable-line import/no-extraneous-dependencies
 import PN from '../../src';
-import sendGCM from '../../src/sendGCM';
 import sendADM from '../../src/sendADM';
 import sendWNS from '../../src/sendWNS';
 import sendWeb from '../../src/sendWeb';
@@ -53,7 +52,6 @@ describe('push-notifications: call with registration ids for android, ios, windo
           case 0:
           case 1:
           case 2:
-            expect(method).to.equal(sendGCM);
             break;
 
           case 3:
diff --git a/test/send/sendADM.js b/test/send/sendADM.js
index f05ac31..c98cea4 100644
--- a/test/send/sendADM.js
+++ b/test/send/sendADM.js
@@ -3,12 +3,7 @@ import { expect } from 'chai';
 import sinon from 'sinon';
 import adm from 'node-adm';
 import PN from '../../src';
-import {
-  sendOkMethodGCM,
-  testPushSuccess,
-  testPushError,
-  testPushException,
-} from '../util';
+import { testPushSuccess, testPushError, testPushException } from '../util';
 
 const method = 'adm';
 const regIds = [
@@ -34,7 +29,6 @@ const pn = new PN(admOpts);
 const fErr = new Error('Forced error');
 
 const testSuccess = testPushSuccess(method, regIds);
-const testSuccessGCM = testPushSuccess('gcm', regIds);
 const testError = testPushError(method, regIds, fErr.message);
 const testException = testPushException(fErr.message);
 
@@ -164,31 +158,4 @@ describe('push-notifications-adm', () => {
         .catch((err) => testException(err, undefined, done));
     });
   });
-
-  describe('send push notifications using FCM', () => {
-    const pnGCM = new PN({
-      isAlwaysUseFCM: true,
-      isLegacyGCM: true,
-    });
-    before(() => {
-      sendMethod = sendOkMethodGCM(regIds, data);
-    });
-
-    after(() => {
-      sendMethod.restore();
-    });
-
-    it('all responses should be successful (callback)', (done) => {
-      pnGCM.send(regIds, data, (err, results) =>
-        testSuccessGCM(err, results, done)
-      );
-    });
-
-    it('all responses should be successful (promise)', (done) => {
-      pnGCM
-        .send(regIds, data)
-        .then((results) => testSuccessGCM(null, results, done))
-        .catch(done);
-    });
-  });
 });
diff --git a/test/send/sendAPN.js b/test/send/sendAPN.js
index 7df440b..52f9e20 100644
--- a/test/send/sendAPN.js
+++ b/test/send/sendAPN.js
@@ -9,12 +9,7 @@ import { readFileSync } from 'fs';
 import apn from '@parse/node-apn';
 import PN from '../../src';
 import APN from '../../src/sendAPN';
-import {
-  sendOkMethodGCM,
-  testPushSuccess,
-  testPushError,
-  testPushException,
-} from '../util';
+import { testPushSuccess, testPushError, testPushException } from '../util';
 
 const { expect } = chai;
 chai.use(dirtyChai);
@@ -47,7 +42,6 @@ const fErr = new Error('Forced error');
 const errStatusCode = '410';
 
 const testSuccess = testPushSuccess(method, regIds);
-const testSuccessGCM = testPushSuccess('gcm', regIds);
 const testError = testPushError(method, regIds, fErr.message);
 const testErrorStatusCode = testPushError(method, regIds, errStatusCode);
 const testException = testPushException(fErr.message);
@@ -756,31 +750,4 @@ describe('push-notifications-apn', () => {
       });
     });
   });
-
-  describe('send push notifications successfully using FCM', () => {
-    const pnGCM = new PN({
-      isAlwaysUseFCM: true,
-      isLegacyGCM: true,
-    });
-    before(() => {
-      sendMethod = sendOkMethodGCM(regIds, data);
-    });
-
-    after(() => {
-      sendMethod.restore();
-    });
-
-    it('all responses should be successful (callback)', (done) => {
-      pnGCM.send(regIds, data, (err, results) =>
-        testSuccessGCM(err, results, done)
-      );
-    });
-
-    it('all responses should be successful (promise)', (done) => {
-      pnGCM
-        .send(regIds, data)
-        .then((results) => testSuccessGCM(null, results, done))
-        .catch(done);
-    });
-  });
 });
diff --git a/test/send/sendWNS-accessToken.js b/test/send/sendWNS-accessToken.js
index 19acea3..8e40fa9 100644
--- a/test/send/sendWNS-accessToken.js
+++ b/test/send/sendWNS-accessToken.js
@@ -3,12 +3,7 @@ import { expect } from 'chai';
 import sinon from 'sinon';
 import wns from 'wns';
 import PN from '../../src';
-import {
-  sendOkMethodGCM,
-  testPushSuccess,
-  testPushError,
-  testPushException,
-} from '../util';
+import { testPushSuccess, testPushError, testPushException } from '../util';
 
 const method = 'wns';
 const regIds = [
@@ -92,7 +87,6 @@ const sendWNS = {
 };
 
 const testSuccess = testPushSuccess(method, regIds);
-const testSuccessGCM = testPushSuccess('gcm', regIds);
 const testError = testPushError(method, regIds, fErr.message);
 const testException = testPushException(fErr.message);
 
@@ -223,31 +217,4 @@ describe('push-notifications-wns-access-token', () => {
         .catch((err) => testException(err, undefined, done));
     });
   });
-
-  describe('send push notifications successfully using FCM', () => {
-    const pnGCM = new PN({
-      isAlwaysUseFCM: true,
-      isLegacyGCM: true,
-    });
-    before(() => {
-      sendMethod = sendOkMethodGCM(regIds, data);
-    });
-
-    after(() => {
-      sendMethod.restore();
-    });
-
-    it('all responses should be successful (callback)', (done) => {
-      pnGCM.send(regIds, data, (err, results) =>
-        testSuccessGCM(err, results, done)
-      );
-    });
-
-    it('all responses should be successful (promise)', (done) => {
-      pnGCM
-        .send(regIds, data)
-        .then((results) => testSuccessGCM(null, results, done))
-        .catch(done);
-    });
-  });
 });
diff --git a/test/send/sendWNS.js b/test/send/sendWNS.js
index 6ab4a46..fdda160 100644
--- a/test/send/sendWNS.js
+++ b/test/send/sendWNS.js
@@ -3,12 +3,7 @@ import { expect } from 'chai';
 import sinon from 'sinon';
 import wns from 'wns';
 import PN from '../../src';
-import {
-  sendOkMethodGCM,
-  testPushSuccess,
-  testPushError,
-  testPushException,
-} from '../util';
+import { testPushSuccess, testPushError, testPushException } from '../util';
 
 const method = 'wns';
 const regIds = [
@@ -87,7 +82,6 @@ const sendWNS = {
 };
 
 const testSuccess = testPushSuccess(method, regIds);
-const testSuccessGCM = testPushSuccess('gcm', regIds);
 const testError = testPushError(method, regIds, fErr.message);
 const testException = testPushException(fErr.message);
 
@@ -260,31 +254,4 @@ describe('push-notifications-wns', () => {
         .catch((err) => testException(err, undefined, done));
     });
   });
-
-  describe('send push notifications successfully using FCM', () => {
-    const pnGCM = new PN({
-      isAlwaysUseFCM: true,
-      isLegacyGCM: true,
-    });
-    before(() => {
-      sendMethod = sendOkMethodGCM(regIds, data);
-    });
-
-    after(() => {
-      sendMethod.restore();
-    });
-
-    it('all responses should be successful (callback)', (done) => {
-      pnGCM.send(regIds, data, (err, results) =>
-        testSuccessGCM(err, results, done)
-      );
-    });
-
-    it('all responses should be successful (promise)', (done) => {
-      pnGCM
-        .send(regIds, data)
-        .then((results) => testSuccessGCM(null, results, done))
-        .catch(done);
-    });
-  });
 });
diff --git a/test/util.js b/test/util.js
index 675974d..8d12e68 100644
--- a/test/util.js
+++ b/test/util.js
@@ -1,4 +1,3 @@
-import sinon from 'sinon';
 import { expect } from 'chai';
 
 export const testPushSuccess = (method, regIds) => (err, results, done) => {