diff --git a/pyproject.toml b/pyproject.toml
index 4ea463aa..7bd74d0f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,6 +43,7 @@ dev = [
 ]
 
 [tool.pytest.ini_options]
+addopts = "--basetemp=tests/artifacts/_pytest_tmp"
 markers = [
     "integration: marks tests as integration tests (requires live GUI)",
     "clean_install: clean install verification (opt-in via RUN_CLEAN_INSTALL_TEST=1)",