diff --git a/core-java-modules/core-java-collections-5/README.md b/core-java-modules/core-java-collections-5/README.md
index 4869158d2b..acee8154f7 100644
--- a/core-java-modules/core-java-collections-5/README.md
+++ b/core-java-modules/core-java-collections-5/README.md
@@ -9,4 +9,5 @@
 - [Skipping the First Iteration in Java](https://www.baeldung.com/java-skip-first-iteration)
 - [Remove Elements From a Queue Using Loop](https://www.baeldung.com/java-remove-elements-queue)
 - [Intro to Vector Class in Java](https://www.baeldung.com/java-vector-guide)
+- [HashSet toArray() Method in Java](https://www.baeldung.com/java-hashset-toarray)
 - More articles: [[<-- prev]](/core-java-modules/core-java-collections-4)