diff --git a/README.md b/README.md
index 72322a8..7a2c9c3 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,11 @@
 
 Convert `has()` and `whereHas()` constraints to non-dependent subqueries.
 
-**NOTICE: Postgres' optimizer is very smart and covers JOIN optimization for dependent (correlated) subqueries. Therefore, this library is mainly targeted at MySQL which has a poor optimizer.**
+> [!IMPORTANT]
+> **NOTICE: Postgres' optimizer is very smart and covers JOIN optimization for dependent (correlated) subqueries. Therefore, this library is mainly targeted at MySQL which has a poor optimizer.**
 
-**UPDATE: [MySQL's optimizer has also been updated in version `8.0.16`](https://zenn.dev/yumemi_inc/articles/e8ca9535dba0b6) to include optimizations similar to PostgreSQL. This library is no longer maintained.**
+> [!CAUTION]
+> **UPDATE: [MySQL's optimizer has also been updated in version `8.0.16`](https://zenn.dev/yumemi_inc/articles/e8ca9535dba0b6) to include optimizations similar to PostgreSQL. This library is no longer maintained.**
 
 ## Requirements