diff --git a/composer.json b/composer.json
index d0a01c0..f1c1116 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
   ],
   "require": {
     "php": "^7.1",
-    "friendsofphp/php-cs-fixer": "2.8.1"
+    "friendsofphp/php-cs-fixer": "^2.8.1"
   },
   "require-dev": {
     "phpunit/phpunit": "^6.0",