diff --git a/dynamic_links/testapp/readme.md b/dynamic_links/testapp/readme.md
index 281fbdde..2181214a 100644
--- a/dynamic_links/testapp/readme.md
+++ b/dynamic_links/testapp/readme.md
@@ -17,6 +17,11 @@ using the
 
 ## Notes
 
+> [!IMPORTANT]
+> Firebase Dynamic Links is **deprecated** and should not be used in new projects. The service will shut down on August 25, 2025.
+>
+> Please see our [Dynamic Links Deprecation FAQ documentation](https://firebase.google.com/support/dynamic-links-faq) for more guidance.
+
 * Dynamic Links is not supported on tvOS.
 
 ## Building the Sample