diff --git a/composer.json b/composer.json
index 526516f176..34d13463bb 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
 	},
 	"require-dev": {
 		"dealerdirect/phpcodesniffer-composer-installer": "~0.5.0",
-		"wp-coding-standards/wpcs": "~1.2.0"
+		"wp-coding-standards/wpcs": "~2.0.0"
 	},
 	"scripts": {
 		"format": "phpcbf --standard=phpcs.xml.dist --report-summary --report-source",
diff --git a/composer.lock b/composer.lock
index 08c0f3dc01..308c686a47 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c3625c9fc2ce3a44cad41a64f258bafd",
+    "content-hash": "c7426ffeca8db395605e43bccf174b02",
     "packages": [],
     "packages-dev": [
         {
@@ -126,24 +126,26 @@
         },
         {
             "name": "wp-coding-standards/wpcs",
-            "version": "1.2.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards.git",
-                "reference": "f328bcafd97377e8e5e5d7b244d5ddbf301a3a5c"
+                "reference": "c9eaadaafefce36b3cb7e06eb15305b8c4cae9ce"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/WordPress-Coding-Standards/WordPress-Coding-Standards/zipball/f328bcafd97377e8e5e5d7b244d5ddbf301a3a5c",
-                "reference": "f328bcafd97377e8e5e5d7b244d5ddbf301a3a5c",
+                "url": "https://api.github.com/repos/WordPress-Coding-Standards/WordPress-Coding-Standards/zipball/c9eaadaafefce36b3cb7e06eb15305b8c4cae9ce",
+                "reference": "c9eaadaafefce36b3cb7e06eb15305b8c4cae9ce",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3",
-                "squizlabs/php_codesniffer": "^2.9.0 || ^3.0.2"
+                "php": ">=5.4",
+                "squizlabs/php_codesniffer": "^3.3.1"
             },
             "require-dev": {
-                "phpcompatibility/php-compatibility": "^9.0"
+                "dealerdirect/phpcodesniffer-composer-installer": "^0.5.0",
+                "phpcompatibility/php-compatibility": "^9.0",
+                "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
             },
             "suggest": {
                 "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3 || This Composer plugin will sort out the PHPCS 'installed_paths' automatically."
@@ -165,7 +167,7 @@
                 "standards",
                 "wordpress"
             ],
-            "time": "2018-12-18T09:43:51+00:00"
+            "time": "2019-01-16T10:13:16+00:00"
         }
     ],
     "aliases": [],
diff --git a/tests/phpunit/tests/functions.php b/tests/phpunit/tests/functions.php
index 453d3c8ad8..88b9a46475 100644
--- a/tests/phpunit/tests/functions.php
+++ b/tests/phpunit/tests/functions.php
@@ -7,7 +7,7 @@ class Tests_Functions extends WP_UnitTestCase {
 	function test_wp_parse_args_object() {
 		$x        = new MockClass;
 		$x->_baba = 5;
-		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.NotSnakeCaseMemberVar
+		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
 		$x->a     = array( 5, 111, 'x' );
 		$this->assertEquals(
 			array(
@@ -43,7 +43,7 @@ class Tests_Functions extends WP_UnitTestCase {
 	function test_wp_parse_args_defaults() {
 		$x        = new MockClass;
 		$x->_baba = 5;
-		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.NotSnakeCaseMemberVar
+		$x->yZ    = 'baba'; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
 		$x->a     = array( 5, 111, 'x' );
 		$d        = array( 'pu' => 'bu' );
 		$this->assertEquals(
diff --git a/tests/phpunit/tests/user.php b/tests/phpunit/tests/user.php
index b15aa6060d..01be5de452 100644
--- a/tests/phpunit/tests/user.php
+++ b/tests/phpunit/tests/user.php
@@ -199,7 +199,7 @@ class Tests_User extends WP_UnitTestCase {
 	 * @ticket 20043
 	 */
 	public function test_user_unset() {
-		// phpcs:disable WordPress.NamingConventions.ValidVariableName.NotSnakeCaseMemberVar
+		// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
 		$user = new WP_User( self::$author_id );
 
 		// Test custom fields