diff --git a/composer.json b/composer.json
index 5e2c29a..cf8bd2a 100644
--- a/composer.json
+++ b/composer.json
@@ -36,7 +36,7 @@
   "require-dev": {
     "brianium/paratest": "^7",
     "psalm/plugin-phpunit": "^0.19.5",
-    "squizlabs/php_codesniffer": "^3.7.2",
+    "squizlabs/php_codesniffer": "^4.0.0",
     "vimeo/psalm": "^6.10"
   },
   "conflict": {