diff --git a/README.md b/README.md
index 01c026c..f5c29a2 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ a relative path to a custom phpcs ruleset.xml file.
 
 ### Supported Coding Standards
 
-In addition to standards provided by [default](https://github.com/squizlabs/PHP_CodeSniffer/wiki/Usage#printing-a-list-of-installed-coding-standards) with PHP_CodeSniffer, the [Drupal](https://github.com/klausi/coder) and [WordPress](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards) coding standards are supported. Here is the full list:
+In addition to standards provided by [default](https://github.com/squizlabs/PHP_CodeSniffer/wiki/Usage#printing-a-list-of-installed-coding-standards) with PHP_CodeSniffer, the [Drupal](https://github.com/klausi/coder), [WordPress](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards), and [Yii2](https://github.com/yiisoft/yii2-coding-standards) coding standards are supported. Here is the full list:
 
 * Drupal
 * DrupalPractice
@@ -56,6 +56,7 @@ In addition to standards provided by [default](https://github.com/squizlabs/PHP_
 * WordPress-Docs
 * WordPress-Extra
 * WordPress-VIP
+* Yii2
 * Zend
 
 ### Need help?
diff --git a/composer.json b/composer.json
index 74ccc3d..8b4d8d5 100644
--- a/composer.json
+++ b/composer.json
@@ -4,6 +4,7 @@
         "barracudanetworks/forkdaemon-php": "^1.0",
         "danielstjules/stringy": "^2.3",
         "drupal/coder": "^8.2",
-        "wp-coding-standards/wpcs": "^0.10.0"
+        "wp-coding-standards/wpcs": "^0.10.0",
+        "yiisoft/yii2-coding-standards": "^2.0"
     }
 }
diff --git a/composer.lock b/composer.lock
index bf62a53..d6d27c6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "980cdeee581aa74de8a9c04a7c31acac",
-    "content-hash": "bd39cd75439a1e371ec1741e05ddd46f",
+    "hash": "4612d9b468952be10b148055025c4b7d",
+    "content-hash": "97bd0d728ba25cc3b8ce2b91f03ba653",
     "packages": [
         {
             "name": "barracudanetworks/forkdaemon-php",
@@ -357,6 +357,74 @@
                 "wordpress"
             ],
             "time": "2016-08-29 20:04:47"
+        },
+        {
+            "name": "yiisoft/yii2-coding-standards",
+            "version": "2.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/yiisoft/yii2-coding-standards.git",
+                "reference": "84660f44652aa3df30b7bebe5fb666fbe5523f66"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/yiisoft/yii2-coding-standards/zipball/84660f44652aa3df30b7bebe5fb666fbe5523f66",
+                "reference": "84660f44652aa3df30b7bebe5fb666fbe5523f66",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.0",
+                "squizlabs/php_codesniffer": ">=2.3.1"
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Qiang Xue",
+                    "email": "qiang.xue@gmail.com",
+                    "homepage": "http://www.yiiframework.com/",
+                    "role": "Founder and project lead"
+                },
+                {
+                    "name": "Alexander Makarov",
+                    "email": "sam@rmcreative.ru",
+                    "homepage": "http://rmcreative.ru/",
+                    "role": "Core framework development"
+                },
+                {
+                    "name": "Maurizio Domba",
+                    "homepage": "http://mdomba.info/",
+                    "role": "Core framework development"
+                },
+                {
+                    "name": "Carsten Brandt",
+                    "email": "mail@cebe.cc",
+                    "homepage": "http://cebe.cc/",
+                    "role": "Core framework development"
+                },
+                {
+                    "name": "Timur Ruziev",
+                    "email": "resurtm@gmail.com",
+                    "homepage": "http://resurtm.com/",
+                    "role": "Core framework development"
+                },
+                {
+                    "name": "Paul Klimov",
+                    "email": "klimov.paul@gmail.com",
+                    "role": "Core framework development"
+                }
+            ],
+            "description": "Yii PHP Framework Version 2 - Coding standard tools",
+            "homepage": "http://www.yiiframework.com/",
+            "keywords": [
+                "codesniffer",
+                "framework",
+                "yii"
+            ],
+            "time": "2016-11-07 16:09:12"
         }
     ],
     "packages-dev": [],