diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0279380..c5a195c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,12 +5,12 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v6
         with:
-          python-version: 3.8
+          python-version: 3.x
       - name: Run lint
         run: |
           python -m pip install tox
@@ -22,17 +22,17 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     steps:
       - name: Set git to use LF on Windows
         if: runner.os == 'Windows'
         run: |
           git config --global core.autocrlf false
           git config --global core.eol lf
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
@@ -44,16 +44,18 @@ jobs:
   package-sdist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v6
         with:
           python-version: 3.x
       - name: Build source package
-        run: python setup.py sdist
+        run: |
+          pip install build
+          python -m build --sdist
       - name: Upload source package
-        uses: actions/upload-artifact@v1
+        uses: actions/upload-artifact@v5
         with:
           name: sdist
           path: dist/
@@ -62,20 +64,15 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        include:
-        - name: manylinux
-          os: ubuntu-latest
-        - name: macos
-          os: macos-latest
-        - name: win
-          os: windows-latest
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
         with:
           submodules: recursive
-      - uses: actions/setup-python@v2
-
+      - uses: actions/setup-python@v6
+        with:
+          python-version: 3.x
       - name: Install cibuildwheel
         run: python -m pip install cibuildwheel
       # - name: Install Visual C++ for Python 2.7
@@ -87,44 +84,39 @@ jobs:
         with:
           platforms: all
 
-      - name: Build wheels for Windows  # see issue #174
-        if: runner.os == 'Windows'
-        run: python -m cibuildwheel --output-dir wheelhouse
-        env:
-          CIBW_BUILD: cp37-${{ matrix.name }}* pp*-${{ matrix.name }}*
-
-      - name: Build wheels for Linux and macOS
-        if: runner.os != 'Windows'
+      - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
         env:
-          CIBW_BUILD: cp37-${{ matrix.name }}* pp*-${{ matrix.name }}*
+          CIBW_BUILD: cp38-* pp*-*
+          CIBW_SKIP: "*musllinux*"
+          CIBW_ENABLE: pypy
           CIBW_ARCHS_LINUX: auto aarch64
           CIBW_BEFORE_BUILD_LINUX: yum install -y libffi-devel
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
-          name: wheels-${{ matrix.name }}
+          name: wheels-${{ matrix.os }}
           path: ./wheelhouse/*.whl
 
   publish:
     runs-on: ubuntu-latest
     needs: [lint, test, package-sdist, package-wheel]
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/download-artifact@v1
+      - uses: actions/checkout@v5
+      - uses: actions/download-artifact@v6
         with:
           name: sdist
           path: dist/
-      - uses: actions/download-artifact@v1
+      - uses: actions/download-artifact@v6
         with:
-          name: wheels-win
+          name: wheels-windows-latest
           path: dist/
-      - uses: actions/download-artifact@v1
+      - uses: actions/download-artifact@v6
         with:
-          name: wheels-macos
+          name: wheels-macos-latest
           path: dist/
-      - uses: actions/download-artifact@v1
+      - uses: actions/download-artifact@v6
         with:
-          name: wheels-manylinux
+          name: wheels-ubuntu-latest
           path: dist/
       - name: Publish to PyPI
         if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/')
diff --git a/setup.py b/setup.py
index c545fd1..61748fd 100644
--- a/setup.py
+++ b/setup.py
@@ -98,7 +98,7 @@ def finalize_options(self):
     install_requires=[
         "cffi>=1.0.0",
     ],
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     cffi_modules=["src/brotlicffi/_build.py:ffi"],
     packages=find_packages('src'),
     package_dir={'': 'src'},
@@ -113,7 +113,6 @@ def finalize_options(self):
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",