Update composer.json

Author: SebLevDev

composer.json

@@ -6,7 +6,7 @@
     "license": "MIT",
     "require": {
         "php": ">=7.1.3",
-        "doctrine/orm": ">=2.4",
+        "doctrine/orm": ">=2.4 || ^3.0",
         "twig/twig": ">=2.9",
         "symfony/property-access": ">=4.0",
         "symfony/dependency-injection": ">=4.0",