diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ffa260a..0de1bd0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,13 +54,18 @@ jobs:
             toxfactor: py3.13
             ignore-typecheck-outcome: true
             ignore-test-outcome: false
+          - python-version: "3.14"
+            toxfactor: py3.14
+            ignore-typecheck-outcome: true
+            ignore-test-outcome: false
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         id: setup-python
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
       - name: Install poetry
         run: |
           python -m pip install poetry==2.0.0
diff --git a/tox.ini b/tox.ini
index 2854090..1ef8bf7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 distshare = {homedir}/.tox/distshare
-envlist = py{3.9,3.10,3.11,3.12,3.13}-pytest{7.3,7.4,8.0,8.1,8.2,8.3,latest,main}
+envlist = py{3.9,3.10,3.11,3.12,3.13,3.14}-pytest{7.3,7.4,8.0,8.1,8.2,8.3,8.4,latest,main}
           py{3.9,3.10,3.11}-pytest{7.0,7.1,7.2}
           mypy
 
@@ -12,6 +12,7 @@ ignore_outcome =
 deps =
     pytestlatest: pytest
     pytestmain: git+https://github.com/pytest-dev/pytest.git@main
+    pytest8.4: pytest~=8.4.0
     pytest8.3: pytest~=8.3.0
     pytest8.2: pytest~=8.2.0
     pytest8.1: pytest~=8.1.0