diff --git a/README.md b/README.md
index 93ec0f0..b9d6373 100644
--- a/README.md
+++ b/README.md
@@ -3,5 +3,5 @@
 This repo distributes the [Abseil](https://github.com/abseil/abseil-cpp) library
 as a binary (xcframework) via Swift Package Manager.
 
-> **Warning**
+> [!WARNING]
 > This repo is not supported as a direct dependency for non-Firebase usage.