diff --git a/composer.json b/composer.json
index 6d32e09e..c75544d4 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
   "require-dev" : {
     "phpunit/phpunit" : "5.7.27",
-    "squizlabs/php_codesniffer" : "2.7.1"
+    "squizlabs/php_codesniffer" : "3.4.0"
   }
 }
\ No newline at end of file