diff --git a/composer.json b/composer.json
index 6a26751..dff68d1 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
     "phpstan/phpstan": "^2",
     "phpunit/phpunit": "^9 || ^10",
     "slim/psr7": "^1.6",
-    "squizlabs/php_codesniffer": "^3.10"
+    "squizlabs/php_codesniffer": "^4.0"
   },
   "autoload": {
     "psr-4": {