diff --git a/tox.ini b/tox.ini
index e283db3..5d01a63 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,6 +6,7 @@ envlist = py{310,311}, pylint, mypy, flake8
 deps =
     poetry
 commands =
+    poetry install
     poetry run pytest
 
 [testenv:pylint]