diff --git a/composer.json b/composer.json
index 6b28295ad..382b11dd8 100644
--- a/composer.json
+++ b/composer.json
@@ -60,9 +60,6 @@
         "psr/container-implementation": "1.0.0"
     },
     "extra": {
-        "branch-alias": {
-            "4.x-dev": "4.3.x-dev"
-        },
         "expose": [
             "client/images",
             "client/styles",
@@ -107,4 +104,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
+}
\ No newline at end of file