diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1da89b17..e9201e30 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4.1.0
diff --git a/.github/workflows/mutation-testing.yml b/.github/workflows/mutation-testing.yml
index 8cc78d5e..220e4a26 100644
--- a/.github/workflows/mutation-testing.yml
+++ b/.github/workflows/mutation-testing.yml
@@ -10,7 +10,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@v4.7.1
         with:
-          python-version: 3.11
+          python-version: 3.12
       - uses: actions/cache@v3.3.2
         with:
           path: ~/.cache/pip
diff --git a/.python-version b/.python-version
index 371cfe35..92536a9e 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.11.1
+3.12.0
diff --git a/README.md b/README.md
index 58014d7c..727d2785 100644
--- a/README.md
+++ b/README.md
@@ -193,7 +193,7 @@ LGTM is owned by GitHub and free for open source repositories. It can only be en
 
 Prerequisites:
 
-- Python 3.8 through 3.11 (this can be changed in `.python-version` and `pyproject.toml`)
+- Python 3.8 through 3.12 (this can be changed in `.python-version` and `pyproject.toml`)
 - [Poetry](https://python-poetry.org/docs/#installation)
 
 Optional dependencies: