diff --git a/core-java-modules/core-java-21/README.md b/core-java-modules/core-java-21/README.md
index c63f3b360b..2e7130c906 100644
--- a/core-java-modules/core-java-21/README.md
+++ b/core-java-modules/core-java-21/README.md
@@ -1 +1,2 @@
-## Relevant Articles
\ No newline at end of file
+## Relevant Articles
+- [Sequenced Collections in Java 21](https://www.baeldung.com/java-21-sequenced-collections)