diff --git a/composer.json b/composer.json
index ffab195..667df14 100644
--- a/composer.json
+++ b/composer.json
@@ -31,8 +31,5 @@
         "exclude-from-classmap": [
             "/Tests/"
         ]
-    },
-    "extra": {
-        "branch-version": "3.4"
     }
 }