diff --git a/Neos.Flow/Classes/Core/Bootstrap.php b/Neos.Flow/Classes/Core/Bootstrap.php
index <HASH>..<HASH> 100644
--- a/Neos.Flow/Classes/Core/Bootstrap.php
+++ b/Neos.Flow/Classes/Core/Bootstrap.php
@@ -547,7 +547,7 @@ class Bootstrap
         }
 
         define('FLOW_ONLY_COMPOSER_LOADER', $onlyUseComposerAutoLoaderForPackageClasses);
-        define('FLOW_VERSION_BRANCH', '5.1');
+        define('FLOW_VERSION_BRANCH', '5.2');
         define('FLOW_APPLICATION_CONTEXT', (string)$this->context);
     }
BUGFIX: Set FLOW_VERSION_BRANCH to <I>