diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index bb44edb26b529859e8b97b7c4184717e02aa6d5e..e12f336fd5b173aff9b272f1ff9ca0ce3ae2a689 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,9 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog`_,
 and this project adheres to `Semantic Versioning`_.
 
+Unreleased
+----------
+
 `2.2.1_ – 2021-12-02
 --------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index a89861ba17aaeda69b0bb30fe4792be23266a7ec..a32ca34c7c672a5d556439f68549b01a0229b5a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "AlekSIS-Core"
-version = "2.3"
+version = "2.3.dev0"
 packages = [
     { include = "aleksis" }
 ]