diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0100252173..58c5b77345 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
+## [Unreleased] - YYYY-MM-DD
+
+### Added
+
+### Changed
+
+### Fixed
+
 ## [0.5.1] - 2021-10-26
 
 ### Added
diff --git a/flash/__about__.py b/flash/__about__.py
index b06dc4b884..4b679fd6ac 100644
--- a/flash/__about__.py
+++ b/flash/__about__.py
@@ -1,4 +1,4 @@
-__version__ = "0.5.1"
+__version__ = "0.5.2dev"
 __author__ = "PyTorchLightning et al."
 __author_email__ = "name@pytorchlightning.ai"
 __license__ = "Apache-2.0"