diff --git a/test-data/unit/README.md b/test-data/unit/README.md
index d95fd80ae818..6cf0b1bb26cf 100644
--- a/test-data/unit/README.md
+++ b/test-data/unit/README.md
@@ -178,7 +178,7 @@ significantly decrease performance.
 
 To run tests with coverage:
 
-    python3 -m pytest --durations 100 --cov mypy --cov-config setup.cfg  --cov-report=term-missing:skip-covered --cov-report=html
+    python3 -m pytest --cov mypy --cov-config setup.cfg  --cov-report=term-missing:skip-covered --cov-report=html
 
 
 Debugging
diff --git a/tox.ini b/tox.ini
index 18d4003319ff..503fc5eb9bee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,7 +16,7 @@ isolated_build = true
 description = run the test driver with {basepython}
 passenv = PYTEST_XDIST_WORKER_COUNT PROGRAMDATA PROGRAMFILES(X86)
 deps = -rtest-requirements.txt
-commands = python -m pytest --durations 100 {posargs}
+commands = python -m pytest {posargs}
 
 [testenv:lint]
 description = check the code style