diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 4e4236f19cb708b07d3faa2c6a15e7238331907c..359632ffad5f0b001be1ed4d643919e07e852f60 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -9,6 +9,9 @@ and this project adheres to `Semantic Versioning`_.
 Unreleased
 ----------
 
+`2.3`_ - 2022-06-25
+-------------------
+
 Added
 ~~~~~
 
@@ -220,3 +223,5 @@ Fixed
 .. _2.1.1: https://edugit.org/Teckids/AlekSIS/AlekSIS-App-Untis/-/tags/2.1.1
 .. _2.1.2: https://edugit.org/Teckids/AlekSIS/AlekSIS-App-Untis/-/tags/2.1.2
 .. _2.1.3: https://edugit.org/Teckids/AlekSIS/AlekSIS-App-Untis/-/tags/2.1.3
+.. _2.2: https://edugit.org/Teckids/AlekSIS/AlekSIS-App-Untis/-/tags/2.2
+.. _2.3: https://edugit.org/Teckids/AlekSIS/AlekSIS-App-Untis/-/tags/2.3
diff --git a/README.rst b/README.rst
index 10164b7f4f2f85c31d268c9e71ca535e9f97528e..47e5f1338e649ba7c34d8740f23b32eb5ab506e8 100644
--- a/README.rst
+++ b/README.rst
@@ -31,7 +31,7 @@ Licence
 
 ::
 
-  Copyright © 2018, 2019, 2020, 2021 Jonathan Weth <dev@jonathanweth.de>
+  Copyright © 2018, 2019, 2020, 2021, 2022 Jonathan Weth <dev@jonathanweth.de>
   Copyright © 2018, 2019 Frank Poetzsch-Heffter <p-h@katharineum.de>
   Copyright © 2019, 2020, 2021, 2022 Dominik George <dominik.george@teckids.org>
   Copyright © 2019, 2020 Tom Teichler <tom.teichler@teckids.org>
diff --git a/aleksis/apps/untis/apps.py b/aleksis/apps/untis/apps.py
index 27a0a264b2efadb292aeb33c885126a2005088f7..295b5b8e3173e7d6fac4aa32ff6ef05ecb7c823f 100644
--- a/aleksis/apps/untis/apps.py
+++ b/aleksis/apps/untis/apps.py
@@ -10,7 +10,7 @@ class UntisConfig(AppConfig):
     }
     licence = "EUPL-1.2+"
     copyright_info = (
-        ([2018, 2019, 2020, 2021], "Jonathan Weth", "dev@jonathanweth.de"),
+        ([2018, 2019, 2020, 2021, 2022], "Jonathan Weth", "dev@jonathanweth.de"),
         ([2018, 2019], "Frank Poetzsch-Heffter", "p-h@katharineum.de"),
         ([2019, 2020, 2021, 2022], "Dominik George", "dominik.george@teckids.org"),
         ([2019, 2020], "Tom Teichler", "tom.teichler@teckids.org"),
diff --git a/docs/conf.py b/docs/conf.py
index d8211b0981620a02016b7c72f31bde1f393c593f..84ad3d277f67ba7178df9e2106176fce20aba6ce 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -29,9 +29,9 @@ copyright = "2018-2022 The AlekSIS team"
 author = "The AlekSIS Team"
 
 # The short X.Y version
-version = "2.2"
+version = "2.3"
 # The full version, including alpha/beta/rc tags
-release = "2.2.1.dev0"
+release = "2.3.1.dev0"
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index 4103538d92fd1be25e177aecfc58218ca9f56dfc..02415b9f31059394b4940e74bfab8403a45e52f6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "AlekSIS-App-Untis"
-version = "2.2.1.dev0"
+version = "2.3.1.dev0"
 packages = [
     { include = "aleksis" }
 ]
@@ -42,7 +42,7 @@ mysqlclient = "^2.0.0"
 tqdm = "^4.44.1"
 defusedxml = "^0.7.0"
 aleksis-core = "^2.8"
-aleksis-app-chronos = "^2.3"
+aleksis-app-chronos = "^2.4"
 
 [tool.poetry.dev-dependencies]
 aleksis-builddeps = "*"