diff --git a/tox.ini b/tox.ini
index 87673d3..f83fe10 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ commands =
 
     tests,safety: {envpython} -m pip install {toxinidir}
 
-    tests,coverage: {envpython} -m {env:MAYBE_COVERAGE:} py.test {posargs:{toxinidir}/sphinx_json_schema_spec/}
+    tests,coverage: {envpython} -m {env:MAYBE_COVERAGE:} pytest {posargs:{toxinidir}/sphinx_json_schema_spec/}
     tests: {envpython} -m doctest {toxinidir}/README.rst
 
     coverage: {envpython} -m coverage report --show-missing