diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 6773fe8e6..7ceff5cff 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -36,7 +36,7 @@ jobs:
       - name: Run PyTest
 
         run: |
-          pytest --junitxml=pytest.xml --cov-report=term-missing:skip-covered --cov=mrpro | tee pytest-coverage.txt
+          pytest -n 4 --junitxml=pytest.xml --cov-report=term-missing:skip-covered --cov=mrpro | tee pytest-coverage.txt
 
       - name: Pytest coverage comment
         id: coverageComment
diff --git a/pyproject.toml b/pyproject.toml
index c8c543e1c..86f938726 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,7 @@ docs = ["sphinx", "sphinx_rtd_theme"]
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 filterwarnings = ["error"]
-addopts = "-n auto"
+# addopts = "-n auto" # TODO: debug vscode missing tests if enabled
 
 # MyPy section
 [tool.mypy]