diff --git a/composer.json b/composer.json
index c7b8bc81..a1f75865 100644
--- a/composer.json
+++ b/composer.json
@@ -30,9 +30,6 @@
         "squizlabs/php_codesniffer": "^3"
     },
     "extra": {
-        "branch-alias": {
-            "dev-master": "5.x-dev"
-        },
         "expose": [
             "javascript"
         ]
@@ -49,4 +46,4 @@
     },
     "minimum-stability": "dev",
     "prefer-stable": true
-}
+}
\ No newline at end of file