diff --git a/tox.ini b/tox.ini
index e948b1b3a4..ed74e208c3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -48,7 +48,7 @@ allowlist_externals =
 commands_pre =
     poetry install --only lint
 commands =
-    poetry lock --check
+    poetry check --lock
     # uncomment the following line if this charm owns a lib
     # codespell {[vars]lib_path}
     poetry run codespell {[vars]all_path}