diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 781c3b8..6bb807f 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
 
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index f46027d..af0905b 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -16,12 +16,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
-        python-version: '3.x'
+        python-version: '3.11'
 
     - name: Install package
       run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c0538e8..c581ee6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@
 ## 0.2.0, 3 September 2023
 
 - Moved to something more closely resembling semantic versioning, which is the main reason this is version 0.2.0.
-- Builds and tests on Python 3.11 have been successful, so now supporting this version. Started testing on Python 3.12, which is not supported for the time being.
+- Builds and tests on Python 3.11 have been successful, so now supporting this version.
 - Added custom 'alarm' `Detector`, which can be instantiated with a function and a warning to emit when the function returns True for a 1D array. You can easily write your own detectors with this class.
 - Added `make_detector_pipeline()` which can take sequences of functions and warnings (or a mapping of functions to warnings) and returns a `scikit-learn.pipeline.Pipeline` containing a `Detector` for each function.
 - Added `RegressionMultimodalDetector` to allow detection of non-unimodal distributions in features, when considered across the entire dataset. (Coming soon, a similar detector for classification tasks that will partition the data by class.)