diff --git a/composer.json b/composer.json
index 2b8ddf2..2451a4c 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
 	],
 	"require": {
 		"php": "~7.1",
-		"squizlabs/php_codesniffer": "~3.3.1",
+		"squizlabs/php_codesniffer": "~3.4.0",
 		"slevomat/coding-standard": "~4.7"
 	},
 	"require-dev": {