diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index 140c4549..04191fee 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -1,132 +1,136 @@
 name: Build and test
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 on:
-    # Only on pushes to main or one of the release branches we build on push
-    push:
-        branches:
-            - main
-            - "[0-9].[0-9]+-branch"
-        tags:
-            - "*"
-    # Build pull requests
-    pull_request:
+  # Only on pushes to main or one of the release branches we build on push
+  push:
+    branches:
+      - main
+      - "[0-9].[0-9]+-branch"
+    tags:
+      - "*"
+  # Build pull requests
+  pull_request:
 
 jobs:
-    test:
-        strategy:
-            matrix:
-                py:
-                    - "3.9"
-                    - "3.10"
-                    - "3.11"
-                    - "3.12"
-                    - "3.13"
-                    - "pypy-3.9"
-                    - "pypy-3.10"
-                    # Pre-release
-                os:
-                    - "ubuntu-22.04"
-                    - "windows-latest"
-                    - "macos-14" # arm64
-                    - "macos-13" # x64
-                architecture:
-                    - x64
-                    - x86
-                    - arm64
-                include:
-                    - py: "pypy-3.9"
-                      toxenv: "pypy39"
-                    - py: "pypy-3.10"
-                      toxenv: "pypy310"
-                exclude:
-                    # Ubuntu does not have x86/arm64 Python
-                    - os: "ubuntu-22.04"
-                      architecture: x86
-                    - os: "ubuntu-22.04"
-                      architecture: arm64
-                    # MacOS we need to make sure to remove x86 on all
-                    # We need to run no arm64 on macos-13 (Intel), but some
-                    # Python versions: 3.9/3.10
-                    #
-                    # From 3.11 onward, there is support for running x64 and
-                    # arm64 on Apple Silicon based systems (macos-14)
-                    - os: "macos-13"
-                      architecture: x86
-                    - os: "macos-13"
-                      architecture: arm64
-                    - os: "macos-14"
-                      architecture: x86
-                    - os: "macos-14"
-                      architecture: x64
-                      py: "3.9"
-                    - os: "macos-14"
-                      architecture: x64
-                      py: "3.10"
-                    # Windows does not have arm64 releases
-                    - os: "windows-latest"
-                      architecture: arm64
-                    # Don't run all PyPy versions except latest on
-                    # Windows/macOS. They are expensive to run.
-                    - os: "windows-latest"
-                      py: "pypy-3.9"
-                    - os: "macos-13"
-                      py: "pypy-3.9"
-                    - os: "macos-14"
-                      py: "pypy-3.9"
+  test:
+    strategy:
+      matrix:
+        py:
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "pypy-3.9"
+          - "pypy-3.10"
+          # Pre-release
+        os:
+          - "ubuntu-22.04"
+          - "windows-latest"
+          - "macos-14" # arm64
+          - "macos-13" # x64
+        architecture:
+          - x64
+          - x86
+          - arm64
+        include:
+          - py: "pypy-3.9"
+            toxenv: "pypy39"
+          - py: "pypy-3.10"
+            toxenv: "pypy310"
+        exclude:
+          # Ubuntu does not have x86/arm64 Python
+          - os: "ubuntu-22.04"
+            architecture: x86
+          - os: "ubuntu-22.04"
+            architecture: arm64
+          # MacOS we need to make sure to remove x86 on all
+          # We need to run no arm64 on macos-13 (Intel), but some
+          # Python versions: 3.9/3.10
+          #
+          # From 3.11 onward, there is support for running x64 and
+          # arm64 on Apple Silicon based systems (macos-14)
+          - os: "macos-13"
+            architecture: x86
+          - os: "macos-13"
+            architecture: arm64
+          - os: "macos-14"
+            architecture: x86
+          - os: "macos-14"
+            architecture: x64
+            py: "3.9"
+          - os: "macos-14"
+            architecture: x64
+            py: "3.10"
+          # Windows does not have arm64 releases
+          - os: "windows-latest"
+            architecture: arm64
+          # Don't run all PyPy versions except latest on
+          # Windows/macOS. They are expensive to run.
+          - os: "windows-latest"
+            py: "pypy-3.9"
+          - os: "macos-13"
+            py: "pypy-3.9"
+          - os: "macos-14"
+            py: "pypy-3.9"
+    name: "Python: ${{ matrix.py }}-${{ matrix.architecture }} on ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.py }}
+          architecture: ${{ matrix.architecture }}
+      - run: pip install tox
+      - name: Running tox with specific toxenv
+        if: ${{ matrix.toxenv != '' }}
+        env:
+          TOXENV: ${{ matrix.toxenv }}
+        run: tox
+      - name: Running tox for current python version
+        if: ${{ matrix.toxenv == '' }}
+        run: tox -e py
 
-        name: "Python: ${{ matrix.py }}-${{ matrix.architecture }} on ${{ matrix.os }}"
-        runs-on: ${{ matrix.os }}
-        steps:
-            - uses: actions/checkout@v4
-            - name: Setup python
-              uses: actions/setup-python@v5
-              with:
-                  python-version: ${{ matrix.py }}
-                  architecture: ${{ matrix.architecture }}
-            - run: pip install tox
-            - name: Running tox with specific toxenv
-              if: ${{ matrix.toxenv != '' }}
-              env:
-                TOXENV: ${{ matrix.toxenv }}
-              run: tox
-            - name: Running tox for current python version
-              if: ${{ matrix.toxenv == '' }}
-              run: tox -e py
+  coverage:
+    runs-on: ubuntu-22.04
+    name: Validate coverage
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+          architecture: x64
+      - run: pip install tox
+      - run: tox -e py313,coverage
 
-    coverage:
-        runs-on: ubuntu-22.04
-        name: Validate coverage
-        steps:
-            - uses: actions/checkout@v4
-            - name: Setup python
-              uses: actions/setup-python@v5
-              with:
-                  python-version: "3.13"
-                  architecture: x64
+  docs:
+    runs-on: ubuntu-22.04
+    name: Build the documentation
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+          architecture: x64
+      - run: pip install tox
+      - run: tox -e docs
 
-            - run: pip install tox
-            - run: tox -e py313,coverage
-    docs:
-        runs-on: ubuntu-22.04
-        name: Build the documentation
-        steps:
-            - uses: actions/checkout@v4
-            - name: Setup python
-              uses: actions/setup-python@v5
-              with:
-                  python-version: "3.13"
-                  architecture: x64
-            - run: pip install tox
-            - run: tox -e docs
-    lint:
-        runs-on: ubuntu-22.04
-        name: Lint the package
-        steps:
-            - uses: actions/checkout@v4
-            - name: Setup python
-              uses: actions/setup-python@v5
-              with:
-                  python-version: "3.13"
-                  architecture: x64
-            - run: pip install tox
-            - run: tox -e lint
+  lint:
+    runs-on: ubuntu-22.04
+    name: Lint the package
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+          architecture: x64
+      - run: pip install tox
+      - run: tox -e lint
diff --git a/setup.cfg b/setup.cfg
index 415c8d70..7bdc08c6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -53,7 +53,7 @@ where=src
 testing =
     pytest
     pytest-cov
-    coverage>=5.0
+    coverage>=7.6.0
 
 docs =
     Sphinx>=1.8.1
diff --git a/tests/test_functional.py b/tests/test_functional.py
index 33b96aa9..5c65801f 100644
--- a/tests/test_functional.py
+++ b/tests/test_functional.py
@@ -29,22 +29,9 @@ def emit(self, record):
 def start_server(app, svr, queue, **kwargs):  # pragma: no cover
     """Run a fixture application."""
     logging.getLogger("waitress").addHandler(NullHandler())
-    try_register_coverage()
     svr(app, queue, **kwargs).run()
 
 
-def try_register_coverage():  # pragma: no cover
-    # Hack around multiprocessing exiting early and not triggering coverage's
-    # atexit handler by always registering a signal handler
-
-    if "COVERAGE_PROCESS_START" in os.environ:
-
-        def sigterm(*args):
-            sys.exit(0)
-
-        signal.signal(signal.SIGTERM, sigterm)
-
-
 class FixtureTcpWSGIServer(server.TcpWSGIServer):
     """A version of TcpWSGIServer that relays back what it's bound to."""