From ca54d1bb01f23abb027512f3f7ff5b6a71e9ae6e Mon Sep 17 00:00:00 2001
From: johnA1331 <53036378+johnA1331@users.noreply.github.com>
Date: Thu, 7 Oct 2021 00:37:33 +0800
Subject: [PATCH] Update README.md

---
 core-java-modules/core-java-collections-maps-4/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core-java-modules/core-java-collections-maps-4/README.md b/core-java-modules/core-java-collections-maps-4/README.md
index 4449d3859b..54ab60da7d 100644
--- a/core-java-modules/core-java-collections-maps-4/README.md
+++ b/core-java-modules/core-java-collections-maps-4/README.md
@@ -3,4 +3,4 @@
 This module contains articles about Map data structures in Java.
 
 ### Relevant Articles: 
-- [Using a Custom Class as a Key in a Java HashMap](https://www.baeldung.com/custom-key-hashmap)
+- [Using a Custom Class as a Key in a Java HashMap](https://www.baeldung.com/java-custom-class-map-key)