diff --git a/tox.ini b/tox.ini
index 6d3d5bf..1f24704 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,11 +10,11 @@ setenv =
 # tox corrupts __pycache__, solution from here:
     PYTHONDONTWRITEBYTECODE=1
 commands =
-    py.test {posargs:parso test}
+    pytest {posargs:parso test}
 [testenv:cov]
 deps =
     coverage
     {[testenv]deps}
 commands =
-    coverage run --source parso -m py.test
+    coverage run --source parso -m pytest
     coverage report