diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 9279525e..1cd153f2 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -25,6 +25,7 @@
     <php>
         <ini name="error_reporting" value="-1" />
         <server name="KERNEL_CLASS" value="CodelyTv\MoocBackend\MoocBackendKernel" />
+        <env name="SYMFONY_DEPRECATIONS_HELPER" value="weak" />
     </php>
 
     <testsuites>