diff --git a/composer.json b/composer.json
index 5285af83..96cd4368 100644
--- a/composer.json
+++ b/composer.json
@@ -48,6 +48,9 @@
         "symfony/web-profiler-bundle": "^4.4",
         "symfony/web-server-bundle": "^4.4"
     },
+    "conflict": {
+        "symplify/package-builder": "^8.3.25"
+    },
     "autoload": {
         "psr-4": {
             "Sylius\\InvoicingPlugin\\": "src/",