diff --git a/composer.json b/composer.json
index a6c50c623..905a0bb69 100644
--- a/composer.json
+++ b/composer.json
@@ -59,6 +59,9 @@
         "psr/container-implementation": "1.0.0"
     },
     "extra": {
+        "branch-alias": {
+            "4.x-dev": "4.3.x-dev"
+        },
         "expose": [
             "client/images",
             "client/styles",
@@ -103,4 +106,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
\ No newline at end of file
+}