diff --git a/.github/workflows/demo.yml b/.github/workflows/demo.yml
index 6b23cfb..bb1bfb9 100644
--- a/.github/workflows/demo.yml
+++ b/.github/workflows/demo.yml
@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: 'setup.cfg'
       - run: |
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index af2cb6d..ebceac6 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: 'requirements-ruff.txt'
       - run: make ruffinstall
@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: 'pyproject.toml'
       - run: make devinstall
@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: 'pyproject.toml'
       - run: make devinstall
diff --git a/pyproject.toml b/pyproject.toml
index 9020033..75dbdb0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = 'time-lapse'
 version = '7.0'
 description = 'Time-lapse movie assembly'
 readme = 'README.md'
-requires-python = '>=3.11'
+requires-python = '>=3.13'
 license = {file = 'LICENSE'}
 authors = [
     {name = 'Arne de Laat', email = 'arne@delaat.net'},