diff --git a/.github/workflows/tox.yml b/.github/workflows/tox.yml
index 9c4a7ff..b2a4df3 100644
--- a/.github/workflows/tox.yml
+++ b/.github/workflows/tox.yml
@@ -26,7 +26,7 @@ jobs:
         uses: coactions/dynamic-matrix@v1
         with:
           min_python: "3.7"
-          max_python: "3.11"
+          max_python: "3.12"
           default_python: "3.11" # used by jobs in other_names
           other_names: |
             lint
diff --git a/pyproject.toml b/pyproject.toml
index 9d62847..ade69e5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,6 +31,7 @@ classifiers = [
   'Programming Language :: Python :: 3.9',
   'Programming Language :: Python :: 3.10',
   'Programming Language :: Python :: 3.11',
+  'Programming Language :: Python :: 3.12',
   'Programming Language :: Python :: Implementation :: CPython',
   'Programming Language :: Python :: Implementation :: PyPy',
 ]
diff --git a/requirements.txt b/requirements.txt
index eae1c3a..0f5ace7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ pre-commit==3.2.2
 pyproject-api==1.5.1
 pytest==7.3.1
 pytest-xdist==3.2.1
-pyyaml==6.0
+pyyaml==6.0.1
 tox==4.5.1
 virtualenv==20.23.0