diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f1fed1f15520600d979d9f4f01da89aad7e7c3cf..88dfb6f16268d8da0ec01743bca8b7b917cf66cc 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
+----------
+
 `4.0.0`_ - 2025-04-13
 ---------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index 883d01e362595f0b5b80dc68d8cf18928ba9cd98..e36e4ab81dc95f20231c42b9281cbbae3c1b74a1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -31,7 +31,7 @@ author = "The AlekSIS Team"
 # The short X.Y version
 version = "4.0"
 # The full version, including alpha/beta/rc tags
-release = "4.0.0"
+release = "4.1.0.dev0"
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index 2d5f550c93345fe0cfe48cfc5d189de38f56b378..ba6472420510dea63a2a47152e361d3ec013397e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "AlekSIS-App-Chronos"
-version = "4.0.0"
+version = "4.1.0.dev0"
 packages = [
     { include = "aleksis" }
 ]