diff --git a/tox.ini b/tox.ini
index 7fcb593..f2ea147 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@ deps = nose
        pytest-mock
        hypothesis!=3.56.9,<4
        viivakoodi
-commands = py.test --cov escpos
+commands = pytest --cov escpos
 passenv = ESCPOS_CAPABILITIES_PICKLE_DIR ESCPOS_CAPABILITIES_FILE CI TRAVIS TRAVIS_* APPVEYOR APPVEYOR_* CODECOV_*
 
 [testenv:docs]