diff --git a/app/gitlab/lib/common.js b/app/gitlab/lib/common.js
index 14410b4723f6..0160d04a2aea 100644
--- a/app/gitlab/lib/common.js
+++ b/app/gitlab/lib/common.js
@@ -1,13 +1,15 @@
 import { Meteor } from 'meteor/meteor';
 import { Tracker } from 'meteor/tracker';
+import _ from 'underscore';
 
 import { settings } from '../../settings';
 import { CustomOAuth } from '../../custom-oauth';
 
 const config = {
 	serverURL: 'https://gitlab.com',
-	identityPath: '/api/v3/user',
+	identityPath: '/api/v4/user',
 	scope: 'read_user',
+	mergeUsers: false,
 	addAutopublishFields: {
 		forLoggedInUser: ['services.gitlab'],
 		forOtherUsers: ['services.gitlab.username'],
@@ -19,16 +21,37 @@ const Gitlab = new CustomOAuth('gitlab', config);
 
 if (Meteor.isServer) {
 	Meteor.startup(function() {
-		settings.get('API_Gitlab_URL', function(key, value) {
-			config.serverURL = value.trim().replace(/\/*$/, '');
+		const updateConfig = _.debounce(() => {
+			config.serverURL = settings.get('API_Gitlab_URL').trim().replace(/\/*$/, '') || config.serverURL;
+			config.identityPath = settings.get('Accounts_OAuth_Gitlab_identity_path') || config.identityPath;
+			config.mergeUsers = Boolean(settings.get('Accounts_OAuth_Gitlab_merge_users'));
 			Gitlab.configure(config);
-		});
+		}, 300);
+
+		settings.get('API_Gitlab_URL', updateConfig);
+		settings.get('Accounts_OAuth_Gitlab_identity_path', updateConfig);
+		settings.get('Accounts_OAuth_Gitlab_merge_users', updateConfig);
 	});
 } else {
 	Meteor.startup(function() {
 		Tracker.autorun(function() {
+			let anyChange = false;
 			if (settings.get('API_Gitlab_URL')) {
 				config.serverURL = settings.get('API_Gitlab_URL').trim().replace(/\/*$/, '');
+				anyChange = true;
+			}
+
+			if (settings.get('Accounts_OAuth_Gitlab_identity_path')) {
+				config.identityPath = settings.get('Accounts_OAuth_Gitlab_identity_path').trim() || config.identityPath;
+				anyChange = true;
+			}
+
+			if (settings.get('Accounts_OAuth_Gitlab_merge_users')) {
+				config.mergeUsers = true;
+				anyChange = true;
+			}
+
+			if (anyChange) {
 				Gitlab.configure(config);
 			}
 		});
diff --git a/app/gitlab/server/startup.js b/app/gitlab/server/startup.js
index 70fc5d615618..2c98e63db7cb 100644
--- a/app/gitlab/server/startup.js
+++ b/app/gitlab/server/startup.js
@@ -11,6 +11,8 @@ settings.addGroup('OAuth', function() {
 		this.add('API_Gitlab_URL', '', { type: 'string', enableQuery, public: true, secret: true });
 		this.add('Accounts_OAuth_Gitlab_id', '', { type: 'string', enableQuery });
 		this.add('Accounts_OAuth_Gitlab_secret', '', { type: 'string', enableQuery, secret: true });
+		this.add('Accounts_OAuth_Gitlab_identity_path', '/api/v4/user', { type: 'string', public: true, enableQuery });
+		this.add('Accounts_OAuth_Gitlab_merge_users', false, { type: 'boolean', public: true, enableQuery });
 		this.add('Accounts_OAuth_Gitlab_callback_url', '_oauth/gitlab', { type: 'relativeUrl', readonly: true, force: true, enableQuery });
 	});
 });
diff --git a/packages/rocketchat-i18n/i18n/en.i18n.json b/packages/rocketchat-i18n/i18n/en.i18n.json
index 85f2b1bc5c75..3b38fc6aa75e 100644
--- a/packages/rocketchat-i18n/i18n/en.i18n.json
+++ b/packages/rocketchat-i18n/i18n/en.i18n.json
@@ -117,6 +117,8 @@
   "Accounts_OAuth_Gitlab": "OAuth Enabled",
   "Accounts_OAuth_Gitlab_callback_url": "GitLab Callback URL",
   "Accounts_OAuth_Gitlab_id": "GitLab Id",
+  "Accounts_OAuth_Gitlab_identity_path": "Identity Path",
+  "Accounts_OAuth_Gitlab_merge_users": "Merge Users",
   "Accounts_OAuth_Gitlab_secret": "Client Secret",
   "Accounts_OAuth_Google": "Google Login",
   "Accounts_OAuth_Google_callback_url": "Google Callback URL",
diff --git a/server/startup/migrations/index.js b/server/startup/migrations/index.js
index 1f1aa93ec6b2..5e51d9d51f39 100644
--- a/server/startup/migrations/index.js
+++ b/server/startup/migrations/index.js
@@ -146,4 +146,5 @@ import './v145';
 import './v146';
 import './v147';
 import './v148';
+import './v149';
 import './xrun';
diff --git a/server/startup/migrations/v149.js b/server/startup/migrations/v149.js
new file mode 100644
index 000000000000..c324f5fe063f
--- /dev/null
+++ b/server/startup/migrations/v149.js
@@ -0,0 +1,22 @@
+import { Migrations } from '../../../app/migrations/server';
+import { settings } from '../../../app/settings/server';
+import { Settings } from '../../../app/models/server';
+
+Migrations.add({
+	version: 149,
+	up() {
+		if (settings.get('Accounts_OAuth_Gitlab')) {
+			const setting = Settings.findById('Accounts_OAuth_Gitlab_identity_path');
+			const newValue = '/api/v3/user';
+
+			if (setting) {
+				Settings.updateValueById('Accounts_OAuth_Gitlab_identity_path', newValue);
+			} else {
+				Settings.createWithIdAndValue('Accounts_OAuth_Gitlab_identity_path', newValue);
+			}
+		}
+	},
+	down() {
+		// Down migration does not apply in this case
+	},
+});
diff --git a/tests/end-to-end/ui/11-admin.js b/tests/end-to-end/ui/11-admin.js
index 5256e27436d1..76c3cbcd7c21 100644
--- a/tests/end-to-end/ui/11-admin.js
+++ b/tests/end-to-end/ui/11-admin.js
@@ -32,7 +32,7 @@ describe('[Administration]', () => {
 			before(() => {
 				admin.infoLink.waitForVisible(5000);
 				admin.infoLink.click();
-				admin.infoRocketChatTable.waitForVisible(5000);
+				admin.infoRocketChatTable.waitForVisible(10000);
 			});
 			it('the first title should be Rocket.Chat', () => {
 				admin.infoRocketChatTableTitle.getText().should.equal('Rocket.Chat');