diff --git a/composer.json b/composer.json
index c396bcb..3374f65 100644
--- a/composer.json
+++ b/composer.json
@@ -23,15 +23,11 @@
     "extra": {
         "project-files": [
             "mysite/code/*"
-        ],
-        "branch-alias": {
-            "1.x-dev": "1.0.x-dev",
-            "dev-master": "2.x-dev"
-        }
+        ]
     },
     "config": {
         "process-timeout": 600
     },
     "prefer-stable": true,
     "minimum-stability": "dev"
-}
+}
\ No newline at end of file