diff --git a/composer.json b/composer.json
index b1576b11a..fc45544c7 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     "require": {
         "php": "^7.0",
         "ext-pdo": "*",
-        "doctrine/collections": "~1.2",
+        "doctrine/collections": "~1.3",
         "doctrine/dbal": ">=2.5-dev,<2.7-dev",
         "doctrine/instantiator": "~1.0.1",
         "doctrine/common": "^2.7.1",