diff --git a/composer.json b/composer.json
index 74099ed0..c27fe15e 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "require-dev": {
         "ext-intl": "*",
         "phpunit/phpunit": "^4.8.35 || ^5.7",
-        "squizlabs/php_codesniffer": "^2.9.2"
+        "squizlabs/php_codesniffer": "^3.5.4"
     },
     "autoload": {
         "psr-4": {