diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index ae31a46fc9..02fe035c0b 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -63,7 +63,7 @@ abstract class Kernel implements KernelInterface, TerminableInterface
 
     const VERSION = '4.0.0-DEV';
     const VERSION_ID = 40000;
-    const MAJOR_VERSION = 0;
+    const MAJOR_VERSION = 4;
     const MINOR_VERSION = 0;
     const RELEASE_VERSION = 0;
     const EXTRA_VERSION = 'DEV';