diff --git a/java-collections-maps-2/README.md b/java-collections-maps-2/README.md
index 8bcafccfe8..ff84e93ce4 100644
--- a/java-collections-maps-2/README.md
+++ b/java-collections-maps-2/README.md
@@ -1,2 +1,3 @@
 ## Relevant Articles:
 - [Map of Primitives in Java](https://www.baeldung.com/java-map-primitives)
+- [Copying a HashMap in Java](https://www.baeldung.com/java-copy-hashmap)