diff --git a/docs/wp-content/plugins/wpdatatables/lib/markbaker/matrix/composer.json b/docs/wp-content/plugins/wpdatatables/lib/markbaker/matrix/composer.json
index e86a1e055..d86367a7a 100644
--- a/docs/wp-content/plugins/wpdatatables/lib/markbaker/matrix/composer.json
+++ b/docs/wp-content/plugins/wpdatatables/lib/markbaker/matrix/composer.json
@@ -18,7 +18,7 @@
         "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0",
         "phpdocumentor/phpdocumentor": "2.*",
         "phpmd/phpmd": "2.*",
-        "sebastian/phpcpd": "^4.0",
+        "sebastian/phpcpd": "^6.0",
         "phploc/phploc": "^4.0",
         "squizlabs/php_codesniffer": "^3.7",
         "phpcompatibility/php-compatibility": "^9.3",