diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 817498a..aedec37 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,4 +25,6 @@ jobs:
           tox -v -e tests-ci
       - name: Upload coverage to Codecov
         if: ${{ matrix.python-version == '3.12' }}
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.gitignore b/.gitignore
index 63c8315..ed40235 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 *.egg-info/
 *.pyc
-.coverage
+coverage.xml
 .eggs
 .mypy_cache/
 .pybuild
diff --git a/tox.ini b/tox.ini
index 8c69db2..82372a8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ skip_install = true
 allowlist_externals =
   ./tests/datatests.sh
 commands =
-  pytest -ra --cov --cov-report=term-missing {posargs}
+  pytest -ra --cov --cov-report=term-missing --cov-report=xml {posargs}
   ci: ./tests/datatests.sh
 deps =
   ci: codecov