diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c1769bc47..2c6b949cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,7 +37,7 @@ jobs:
         run: |
           # We run tests against "." and not the tests directory as we test the README
           # and documentation.
-          uv run --group=dev --python=${{ matrix.python-version }} pytest -s -vvv --cov-fail-under 100 --cov=src/ --cov=tests/ .
+          uv run --group=dev --python=${{ matrix.python-version }} pytest -s -vvv . --cov --cov-config=pyproject.toml
 
   completion-ci:
     needs: build
diff --git a/pyproject.toml b/pyproject.toml
index 3babf9251..0e9a995c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -434,7 +434,9 @@ log_cli = true
 xfail_strict = true
 
 [tool.coverage]
+run.source = [ "src/", "tests/" ]
 run.branch = true
+report.fail_under = 100
 report.exclude_also = [
     "if TYPE_CHECKING:",
 ]