diff --git a/composer.json b/composer.json
index 311b587f..b52a70c7 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "cycle/database": "^2.0",
         "cycle/entity-behavior": "^1.0",
         "cycle/orm": "^2.0",
-        "doctrine/collections": "^1.6",
+        "doctrine/collections": "^1.8 || ^2.0",
         "fakerphp/faker": "^1.14",
         "httpsoft/http-message": "^1.0.5",
         "php-http/guzzle7-adapter": "^1.0",