diff --git a/build/integration/composer.json b/build/integration/composer.json
index 5334685430..954ea2829a 100644
--- a/build/integration/composer.json
+++ b/build/integration/composer.json
@@ -4,6 +4,7 @@
     "behat/behat": "~3.6.1",
     "guzzlehttp/guzzle": "6.5.2",
     "jarnaiz/behat-junit-formatter": "^1.3",
-    "sabre/dav": "3.2.3"
+    "sabre/dav": "3.2.3",
+    "symfony/event-dispatcher": "~4.4"
   }
 }