diff --git a/docs/guide/migrating-yii2-bootstrap.md b/docs/guide/migrating-yii2-bootstrap.md
index b3eafd8..9c19cd0 100644
--- a/docs/guide/migrating-yii2-bootstrap.md
+++ b/docs/guide/migrating-yii2-bootstrap.md
@@ -35,6 +35,8 @@ There is a new constant [[yii\bootstrap5\ActiveForm::LAYOUT_FLOATING]]. It's a
 
 ### Modal
 
+`data-target` and `data-toggle` change to `data-bs-target` and `data-bs-toggle`
+
 ### Nav
 
 ### NavBar