diff --git a/core-java-modules/core-java-streams-maps/README.md b/core-java-modules/core-java-streams-maps/README.md
index 729105e3fd..f9f7dffad9 100644
--- a/core-java-modules/core-java-streams-maps/README.md
+++ b/core-java-modules/core-java-streams-maps/README.md
@@ -1 +1,2 @@
 ## Relevant Articles:
+- [Handle Duplicate Keys When Producing Map Using Java Stream](https://www.baeldung.com/java-duplicate-keys-when-producing-map-using-stream)