diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 6f6269a4c..7bec5b5e9 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -20,6 +20,11 @@
 
     <php>
         <server name="KERNEL_DIR" value="./app/" />
+        <!--
+          Avoid tests to fail because of deprecated stuff
+          see: http://symfony.com/doc/current/cookbook/upgrade/major_version.html#deprecations-in-phpunit
+        -->
+        <env name="SYMFONY_DEPRECATIONS_HELPER" value="weak" />
     </php>
 
     <filter>