diff --git a/composer.json b/composer.json
index 9a4fbaf..c1d4380 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     "phpunit/phpunit": "^7",
     "phpspec/phpspec": "^3.0",
     "phpmd/phpmd": "@stable",
-    "squizlabs/php_codesniffer": "3.2.3"
+    "squizlabs/php_codesniffer": "3.3.1"
   },
   "autoload": {
     "psr-4": {