diff --git a/composer.json b/composer.json
index e0dfa41..ad32d89 100644
--- a/composer.json
+++ b/composer.json
@@ -33,5 +33,11 @@
       "**/Tests/"
     ]
   },
-  "bin": ["bin/mage"]
+  "bin": ["bin/mage"],
+  "extra": {
+    "branch-alias": {
+      "dev-master": "3.0.x-dev",
+      "dev-nostromo": "3.x-dev"
+    }
+  }
 }
diff --git a/composer.lock b/composer.lock
index 4fab24f..c827c9a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "9c173713ae84b1c0c845e53cf8f62d27",
+    "content-hash": "d9ca16d331cb81c45675d3905de30974",
     "packages": [
         {
             "name": "monolog/monolog",