diff --git a/src/Composer/Composer.php b/src/Composer/Composer.php
index a6901dced..8a870cc47 100644
--- a/src/Composer/Composer.php
+++ b/src/Composer/Composer.php
@@ -51,10 +51,10 @@ class Composer extends PartialComposer
      *
      * @see getVersion()
      */
-    public const VERSION = '2.5.8';
-    public const BRANCH_ALIAS_VERSION = '';
-    public const RELEASE_DATE = '2023-06-09 17:13:21';
-    public const SOURCE_VERSION = '';
+    public const VERSION = '@package_version@';
+    public const BRANCH_ALIAS_VERSION = '@package_branch_alias_version@';
+    public const RELEASE_DATE = '@release_date@';
+    public const SOURCE_VERSION = '2.5.999-dev+source';
 
     /**
      * Version number of the internal composer-runtime-api package