diff --git a/composer.json b/composer.json
index caed656..9fb612a 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
   ],
   "license": "Apache-2.0",
   "require": {
-     "php": "^7.1",
+     "php": ">=7.1",
      "symfony/framework-bundle": "^4.0|^5.0",
      "symfony/twig-bundle": "^4.0|^5.0",
      "symfony/options-resolver": "^4.0|^5.0"