diff --git a/composer.json b/composer.json
index fdeef2ad8..bc6f78a17 100644
--- a/composer.json
+++ b/composer.json
@@ -48,5 +48,7 @@
     },
     "extra": {
         "app-migrations-dir": "Tests/Fixtures/App/app/DoctrineMigrations"
-    }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }