diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e96a5b..99ee86d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 <!--next-version-placeholder-->
 
+## v0.18.9 (2024-09-18)
+
+### Fix
+
+* Upgrade to Python 3.12 ([#134](https://github.com/ocadotechnology/codeforlife-package-python/issues/134)) ([`aed00bf`](https://github.com/ocadotechnology/codeforlife-package-python/commit/aed00bf4ccae9fb67eb4923d0260450e22b491ba))
+
 ## v0.18.8 (2024-09-16)
 
 ### Fix
diff --git a/codeforlife/version.py b/codeforlife/version.py
index d70ca5e..d596532 100644
--- a/codeforlife/version.py
+++ b/codeforlife/version.py
@@ -5,4 +5,4 @@
 
 # Do NOT set manually!
 # This is auto-updated by python-semantic-release in the pipeline.
-__version__ = "0.18.8"
+__version__ = "0.18.9"