diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 29bb9918..38f98ec4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
       fail-fast: false
 
     steps:
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 4975558c..9fc4873c 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,20 +1,26 @@
-# .readthedocs.yaml
-# Read the Docs configuration file
+# Read the Docs configuration file for Sphinx projects
 # See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
 
 # Required
 version: 2
 
-# Build documentation in the docs/ directory with Sphinx
+# Set the OS, Python version and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+# Build documentation in the "docs/" directory with Sphinx
 sphinx:
-   configuration: doc/source/conf.py
+  configuration: doc/source/conf.py
 
-# Optionally build your docs in additional formats such as PDF
+# Optionally build your docs in additional formats such as PDF and ePub
 formats:
-   - pdf
+  - pdf
 
-# Optionally set the version of Python and requirements required to build your docs
+# Optional but recommended, declare the Python requirements required
+# to build your documentation
+# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
 python:
-   version: 3.7
-   install:
-   - requirements: doc/requirements.txt
+  install:
+    - requirements: doc/requirements.txt
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3dd92f82..993648b1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # History of changes
 
-## Version 2.2.3 (in development)
+## Version 2.2.3 (2024-07-01)
 
 ### New features
 
diff --git a/CITATION.cff b/CITATION.cff
index 36210d94..0300b96e 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -5,8 +5,8 @@ authors:
   given-names: "Massimo"
   orcid: "https://orcid.org/0000-0002-9981-9926"
 title: "pygfunction"
-version: 2.2.2
-date-released: 2023-01-09
+version: 2.2.3
+date-released: 2024-07-01
 url: "https://github.com/MassimoCimmino/pygfunction"
 preferred-citation:
   type: conference-paper
diff --git a/LICENSE.md b/LICENSE.md
index 4843796b..59f21b2b 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,5 +1,5 @@
 
-Copyright (c) 2017-2023, Massimo Cimmino
+Copyright (c) 2017-2024, Massimo Cimmino
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 5959cd51..dbb57a2f 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -66,7 +66,7 @@
 
 # General information about the project.
 project = u'pygfunction'
-copyright = u'2017-2023, Massimo Cimmino'
+copyright = u'2017-2024, Massimo Cimmino'
 author = u'Massimo Cimmino'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -76,7 +76,7 @@
 # The short X.Y version.
 version = u'2.2'
 # The full version, including alpha/beta/rc tags.
-release = u'2.2.2'
+release = u'2.2.3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.cfg b/setup.cfg
index ed869f42..4318ef29 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pygfunction
-version = 2.2.2
+version = 2.2.3
 description = A g-function calculator for Python
 author = Massimo Cimmino
 author_email = massimo.cimmino@polymtl.ca
@@ -17,7 +17,7 @@ classifiers =
     Operating System :: OS Independent
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
     Topic :: Scientific/Engineering
     Topic :: Utilities
 
@@ -28,7 +28,7 @@ install_requires =
     numpy >= 1.21.5
     scipy >= 1.7.3
     secondarycoolantprops >= 1.1
-python_requires = >=3.7
+python_requires = >=3.8
 
 [options.extras_require]
 doc =
diff --git a/tox.ini b/tox.ini
index f9b41526..8eeaf4dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,15 +1,15 @@
 [tox]
 minversion = 3.24.5
-envlist = py37, py38, py39, py310, py311
+envlist = py38, py39, py310, py311, py312
 isolated_build = true
 
 [gh-actions]
 python =
-    3.7: py37
     3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [testenv]
 setenv =