diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index e91406e..4175ccc 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -1,5 +1,5 @@
-# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+# This workflow will install Python dependencies, run tests, and lint with a variety of Python versions
+# For more information, see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
 name: Run Tests
 
@@ -11,15 +11,16 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     timeout-minutes: 5
     strategy:
-      matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9, '3.10']
+      fail-fast: false
+      matrix:  # https://devguide.python.org/versions
+        python-version: [3.6, 3.7, 3.8, 3.9, '3.10', 3.11, 3.12, 3.13]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
diff --git a/tox.ini b/tox.ini
index 2f426d4..895f069 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,9 +21,11 @@ max-complexity = 10
 
 [gh-actions]
 python = 
-  3.8: py38
   3.6: py36
   3.7: py37
   3.8: py38
   3.9: py39
   3.10: py310
+  3.11: py311
+  3.12: py312
+  3.13: py313