diff --git a/composer.json b/composer.json
index 97bbf69..c30357d 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,13 @@
     "scripts": {
         "test": "./vendor/bin/phpunit"
     },
+    "autoload": {
+        "psr-4": {
+            "NeutronStandard\\": "NeutronStandard/"
+        }
+    },
     "require": {
-        "php": "^7.0"
+        "php": ">=7.0"
     },
     "require-dev": {
         "sirbrillig/phpcs-variable-analysis": "^2.0.1",