diff --git a/core-java-modules/core-java-collections-4/README.md b/core-java-modules/core-java-collections-4/README.md
index 1f52dc6d91..7a97ebd863 100644
--- a/core-java-modules/core-java-collections-4/README.md
+++ b/core-java-modules/core-java-collections-4/README.md
@@ -12,3 +12,4 @@
 - [Fixed Size Queue Implementations in Java](https://www.baeldung.com/java-fixed-size-queue)
 - [Difference Between Java Enumeration and Iterator](https://www.baeldung.com/java-enumeration-vs-iterator)
 - [Sort Collection of Objects by Multiple Fields in Java](https://www.baeldung.com/java-sort-collection-multiple-fields)
+- [Guide to Java PriorityQueue](https://www.baeldung.com/java-priorityqueue)