diff --git a/setup.cfg b/setup.cfg
index 1ce1969..c5ba457 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -65,7 +65,7 @@ skip_install = True
 deps =
     ruff
 commands =
-    ruff check {posargs:--fix --diff src tests}
+    ruff format {posargs:--diff src tests}
 
 [testenv:lint]
 skip_install = True