diff --git a/src/Symfony/Bundle/SecurityBundle/composer.json b/src/Symfony/Bundle/SecurityBundle/composer.json
index de1d18bf2a..e6bf10d6a5 100644
--- a/src/Symfony/Bundle/SecurityBundle/composer.json
+++ b/src/Symfony/Bundle/SecurityBundle/composer.json
@@ -44,7 +44,7 @@
         "twig/twig": "~1.34|~2.4"
     },
     "conflict": {
-        "symfony/security": "4.1.0-beta1",
+        "symfony/security": "4.1.0-beta1,4.1.0-beta2",
         "symfony/var-dumper": "<3.4",
         "symfony/event-dispatcher": "<3.4",
         "symfony/framework-bundle": "<3.4",