diff --git a/core/composer.json b/core/composer.json
index 62edecc676..ac0e8cc760 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -32,7 +32,7 @@
         "symfony/polyfill-iconv": "^1.8",
         "symfony/yaml": "~3.4.11",
         "twig/twig": "^1.35.0",
-        "doctrine/common": "^2.5",
+        "doctrine/common": "^2.5 <2.9",
         "doctrine/annotations": "^1.2",
         "guzzlehttp/guzzle": "^6.3",
         "symfony-cmf/routing": "^1.4",