diff --git a/.github/workflows/basics.yml b/.github/workflows/basics.yml
index 966155b8..2ef7146a 100644
--- a/.github/workflows/basics.yml
+++ b/.github/workflows/basics.yml
@@ -54,6 +54,7 @@ jobs:
         run: >
           composer require --no-update --no-scripts --no-interaction
           squizlabs/php_codesniffer:"dev-master"
+          phpcsstandards/phpcsextra:"dev-develop"
 
       # Install dependencies and handle caching in one go.
       # @link https://github.com/marketplace/actions/install-composer-dependencies
diff --git a/README.md b/README.md
index a9992f40..cacf2234 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,7 @@ The `Yoast` standard for PHP_CodeSniffer is comprised of the following:
 * The `WordPress` ruleset from the [WordPress Coding Standards](https://github.com/WordPress/WordPress-Coding-Standards) implementing the official [WordPress PHP Coding Standards](https://make.wordpress.org/core/handbook/coding-standards/php/), with some [select exclusions](https://github.com/Yoast/yoastcs/blob/develop/Yoast/ruleset.xml#L29-L75).
 * The [`PHPCompatibilityWP`](https://github.com/PHPCompatibility/PHPCompatibilityWP) ruleset which checks code for PHP cross-version compatibility while preventing false positives for functionality polyfilled within WordPress.
 * Select additional sniffs taken from [`PHP_CodeSniffer`](https://github.com/squizlabs/PHP_CodeSniffer).
+* Select additional sniffs taken from [`PHPCSExtra`](https://github.com/PHPCSStandards/PHPCSExtra).
 * A number of custom Yoast specific sniffs.
 
 Files within version management and dependency related directories, such as the Composer `vendor` directory, are excluded from the scans by default.
diff --git a/composer.json b/composer.json
index 66b237ba..3874d100 100644
--- a/composer.json
+++ b/composer.json
@@ -29,6 +29,7 @@
 		"php-parallel-lint/php-console-highlighter": "^1.0.0",
 		"php-parallel-lint/php-parallel-lint": "^1.3.2",
 		"phpcompatibility/phpcompatibility-wp": "^2.1.4",
+		"phpcsstandards/phpcsextra": "^1.1.2",
 		"squizlabs/php_codesniffer": "^3.7.2",
 		"wp-coding-standards/wpcs": "^2.3.0"
 	},