diff --git a/composer.json b/composer.json
index 3111b3f..acde203 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
       "phpunit/phpunit": "^9.3",
       "phpmd/phpmd": "^2.6",
       "squizlabs/php_codesniffer": "^3.3",
-      "slevomat/coding-standard": "^7.0"
+      "slevomat/coding-standard": "^8.8"
     },
     "autoload": {
         "psr-4": {