diff --git a/composer.json b/composer.json
index e4c1b1a..271903c 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
   "require": {
     "php": "^8.2",
     "ext-json": "*",
-    "complex-heart/domain-model": "^5.0.0"
+    "complex-heart/domain-model": "^5.0.0 || ^6.0.0"
   },
   "require-dev": {
     "mockery/mockery": "^1.6.0",