diff --git a/components/dotenv.rst b/components/dotenv.rst
index 8f614cb07c0..07e3ae79fe2 100644
--- a/components/dotenv.rst
+++ b/components/dotenv.rst
@@ -17,7 +17,7 @@ Installation
 
 .. code-block:: terminal
 
-    $ composer require --dev symfony/dotenv
+    $ composer require --dev symfony/dotenv:^3.4
 
 Alternatively, you can clone the `<https://github.com/symfony/dotenv>`_ repository.