diff --git a/README.md b/README.md
index bff238ab..0a27f44f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
-> **Note** The package **has been renamed** in version 13, see the [upgrade guide](#upgrade-guide).
+> [!IMPORTANT]  
+> The package **has been renamed** in version 13, see the [upgrade guide](#upgrade-guide).
 
 ![Extended ACF](https://user-images.githubusercontent.com/499192/34915298-1782a500-f924-11e7-85a7-dc7de6aacc14.png)