diff --git a/composer.json b/composer.json
index 2bb02c7..d811485 100644
--- a/composer.json
+++ b/composer.json
@@ -18,9 +18,6 @@
     "php": ">=5.6.4",
     "laravel/framework": "^5.1"
   },
-  "require-dev": {
-    "phpunit/phpunit": "~5.7"
-  },
   "autoload": {
     "files": [
       "src/helpers.php"