diff --git a/docs/book/installation.rst b/docs/book/installation.rst
index 57d5adb5a5..97472dcabf 100644
--- a/docs/book/installation.rst
+++ b/docs/book/installation.rst
@@ -74,9 +74,8 @@ browser.
 
 .. tip::
 
-    If you use PHP 5.4 or higher, you can also use the build-in webserver for
-    Symfony. Run the ``php app/console server:run`` command and then access
-    ``http://localhost:8000``.
+    You can also use the Symfony built-in webserver by running the ``php app/console server:run --env dev``
+    command and then accessing ``http://localhost:8000``.
 
 .. _Composer: http://packagist.org
 .. _`Composer installed globally`: http://getcomposer.org/doc/00-intro.md#globally
diff --git a/docs/contributing/code/patches.rst b/docs/contributing/code/patches.rst
index ccece1c9f8..003a1a887f 100644
--- a/docs/contributing/code/patches.rst
+++ b/docs/contributing/code/patches.rst
@@ -13,10 +13,9 @@ Install the Software Stack
 Before working on Sylius, setup a Symfony2 friendly environment with the following
 software:
 
-* Git;
-* PHP version 5.3.3 or above;
-* PHPUnit 3.6.4 or above;
-* MySQL.
+* Git
+* PHP version 5.5.9 or above
+* MySQL
 
 Configure Git
 ~~~~~~~~~~~~~