diff --git a/pyproject.toml b/pyproject.toml
index e06ccbe..aa6ac86 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ concurrency = [
 covcheck = [
     "coverage[toml] ; python_version < '3.11'",
     "coverage>=7.11.3",
+    "pytest-cov>=7.0.0",
 ]
 test = [
     "hypothesis>=6.113.0",
diff --git a/tox.ini b/tox.ini
index 1e52eb7..15986f5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -52,7 +52,7 @@ commands =
     artifact-upload: bash -c "echo 'hello world' > test.txt"
     # Verify that freethreaded builds are using freethreaded interpreter
     py313t: python -c "import sys; assert 'free-threading' in sys.version"
-    covcheck: coverage run --parallel-mode -m pytest --pyargs test_package {posargs}
+    covcheck: pytest --pyargs test_package {posargs}
 
 [testenv:pep8]
 description = verify pep8