diff --git a/composer.json b/composer.json
index 8f240f7..9ae3154 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "require": {
         "php": ">=7.4",
         "twig/twig" : "^v3.4.3",
-        "bit/metagen" : "^v4.0.0"
+        "bit/metagen" : "^v3.0.0 || ^v4.0.0"
     },
     "autoload": {
         "files": [