diff --git a/phpBB/composer.lock b/phpBB/composer.lock
index dd09b6cd56..c7194c2fb5 100644
--- a/phpBB/composer.lock
+++ b/phpBB/composer.lock
@@ -1,4 +1,8 @@
 {
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file"
+    ],
     "hash": "ef6d05965cca4e390fff7ce63e9d2d49",
     "packages": [