diff --git a/components/dotenv.rst b/components/dotenv.rst
index fae35a5b5f2..daa0a197441 100644
--- a/components/dotenv.rst
+++ b/components/dotenv.rst
@@ -58,9 +58,14 @@ Access the value with ``getenv()`` in your code::
     $dbUser = getenv('DB_USER');
     // you can also use ``$_ENV`` or ``$_SERVER``
 
-.. note::
+The ``load()`` method never overwrites existing environment variables. Use the
+``overload()`` method if you need to overwrite them::
+
+    // ...
+    $dotenv->overload(__DIR__.'/.env');
 
-    Symfony Dotenv never overwrites existing environment variables.
+.. versionadded:: 4.2
+    The ``Dotenv::overload()`` method was introduced in Symfony 4.2.
 
 You should never store a ``.env`` file in your code repository as it might
 contain sensitive information; create a ``.env.dist`` file with sensible