diff --git a/res/composer-schema.json b/res/composer-schema.json
index a9a5df2b4..9dc285ddf 100644
--- a/res/composer-schema.json
+++ b/res/composer-schema.json
@@ -444,8 +444,8 @@
             }
         },
         "abandoned": {
-            "type": ["boolean"],
-            "description": "Indicates whether this package has been abandoned. Defaults to false."
+            "type": ["boolean", "string"],
+            "description": "Indicates whether this package has been abandoned, it can be boolean or a package name/URL pointing to a recommended alternative. Defaults to false."
         }
     }
 }