diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e785aae..6f839c6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,19 +5,19 @@ jobs:
       matrix:
         # Pin to 20.04 for 3.6: https://github.com/actions/setup-python/issues/544
         os: [ubuntu-20.04, macos-latest, windows-latest]
-        python-version: ['3.5', '3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.5', '3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - run: python --version
 
-      - run: pip install -U pip
-      - run: pip install -U tox
+      - run: pip install --upgrade pip
+      - run: pip install --upgrade tox
 
       - if: matrix.python-version == '3.9' && startsWith(matrix.os, 'ubuntu-')
         run: |