diff --git a/validation.rst b/validation.rst
index 891d7aa459b..79092d8ef52 100644
--- a/validation.rst
+++ b/validation.rst
@@ -19,7 +19,7 @@ install the validator before using it:
 
 .. code-block:: terminal
 
-    $ composer require symfony/validator
+    $ composer require symfony/validator doctrine/annotations
 
 .. index::
    single: Validation; The basics