WIP
diff --git a/tox.ini b/tox.ini
index bda929b..580a5c9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,6 +12,8 @@
     Cython
     codecov
     coverage
+    pytest
+    pytest-cov
 commands =
     pytest --cov --cov-append
     codecov