diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c1baef160c..d762b32e10f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,23 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [unReleased] - 2021-MM-DD
+
+### Added
+
+
+### Changed
+
+
+### Deprecated
+
+
+### Removed
+
+
+### Fixed
+
+
 ## [0.3.1] - 2021-04-21
 
 - Cleaning remaining inconsistency and fix PL develop integration (
diff --git a/torchmetrics/__about__.py b/torchmetrics/__about__.py
index 746aaec5655..d0f07475883 100644
--- a/torchmetrics/__about__.py
+++ b/torchmetrics/__about__.py
@@ -1,4 +1,4 @@
-__version__ = '0.3.1'
+__version__ = '0.4.0dev'
 __author__ = 'PyTorchLightning et al.'
 __author_email__ = 'name@pytorchlightning.ai'
 __license__ = 'Apache-2.0'