diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index 7fb140d..80486f2 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -10,59 +10,58 @@ jobs:
     name: Build and publish to TestPyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v1
-      with:
-        python-version: 3.9
-    - name: Install pypa/build
-      run: >-
-        python -m
-        pip install
-        build
-        setuptools
-        --user
-    - name: Set dev timestamp
-      run: echo "DEV_BUILD=$(date +%s)" >> $GITHUB_ENV
-    - name: Build binary wheel and source tarball
-      run: >-
-        python -m
-        build
-        --sdist
-        --wheel
-        --outdir dist/
-        .
-    - name: Publish distribution to TestPyPI
-      uses: pypa/gh-action-pypi-publish@master
-      with:
-        password: ${{ secrets.TEST_PYPI_API_TOKEN }}
-        repository_url: https://test.pypi.org/legacy/
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+      - name: Install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          setuptools
+          --user
+      - name: Set dev timestamp
+        run: echo "DEV_BUILD=$(date +%s)" >> $GITHUB_ENV
+      - name: Build binary wheel and source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+          .
+      - name: Publish distribution to TestPyPI
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          password: ${{ secrets.TEST_PYPI_API_TOKEN }}
+          repository_url: https://test.pypi.org/legacy/
   publish:
     name: Build and publish to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.9
-      uses: actions/setup-python@v1
-      with:
-        python-version: 3.9
-    - name: Install pypa/build
-      run: >-
-        python -m
-        pip install
-        build
-        --user
-    - name: Build binary wheel and source tarball
-      run: >-
-        python -m
-        build
-        --sdist
-        --wheel
-        --outdir dist/
-        .
-    - name: Publish distribution to PyPI
-      if: startsWith(github.ref, 'refs/tags')
-      uses: pypa/gh-action-pypi-publish@master
-      with:
-        password: ${{ secrets.PYPI_API_TOKEN }}
-
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+      - name: Install pypa/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+      - name: Build binary wheel and source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+          .
+      - name: Publish distribution to PyPI
+        if: startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index dd3174b..97573fc 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -6,12 +6,12 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: pip install --upgrade pip && pip install -r requirements.txt
-    - name: Run tests
-      run: ./run test
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      - name: Install dependencies
+        run: pip install --upgrade pip && pip install -r requirements.txt
+      - name: Run tests
+        run: ./run test