diff --git a/core-java-modules/core-java-collections-5/README.md b/core-java-modules/core-java-collections-5/README.md
index cf479ec507..0d9b12b842 100644
--- a/core-java-modules/core-java-collections-5/README.md
+++ b/core-java-modules/core-java-collections-5/README.md
@@ -3,5 +3,5 @@
 ## Core Java Collections Cookbooks and Examples
 
 ### Relevant Articles:
-
-- More articles: [[<-- prev]](/core-java-modules/core-java-collections-4)
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+- [Introduction to Roaring Bitmap](https://www.baeldung.com/java-roaring-bitmap-intro)
+- More articles: [[<-- prev]](/core-java-modules/core-java-collections-4)