diff --git a/tox.ini b/tox.ini
index 8d511f6b..0c858fdf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,6 +21,6 @@ deps =
     -rrequirements.txt
     -rextra_requirements.txt
 commands =
-    py.test --cov-config .coveragerc --cov pywb -v --doctest-modules ./pywb/ tests/
+    pytest --cov-config .coveragerc --cov pywb -v --doctest-modules ./pywb/ tests/