diff --git a/composer.json b/composer.json
index 7f9e0e2..42ea4d9 100644
--- a/composer.json
+++ b/composer.json
@@ -31,14 +31,14 @@
         "phpstan/phpdoc-parser": "~1.5.0"
     },
     "conflict": {
-        "doctrine/collections": "<1.7",
+        "doctrine/collections": "<1.8",
         "doctrine/orm": "<2.6",
         "doctrine/persistence": "<2.0"
     },
     "require-dev": {
         "codeception/codeception": "^4.0",
         "doctrine/coding-standard": "^9.0",
-        "doctrine/collections": "^1.7 || ^2.0",
+        "doctrine/collections": "^1.8 || ^2.0",
         "doctrine/doctrine-bundle": "^1.11 || ^2.0",
         "doctrine/orm": "^2.6",
         "doctrine/persistence": "^2.0",