diff --git a/composer.json b/composer.json
index 64238222e..e1356d956 100644
--- a/composer.json
+++ b/composer.json
@@ -51,7 +51,7 @@
         ]
     },
     "config": {
-        "preferred-install": "dist",
+        "preferred-install": "dev",
         "sort-packages": true,
         "optimize-autoloader": true
     },