diff --git a/persistence-modules/spring-boot-persistence-mongodb-3/README.md b/persistence-modules/spring-boot-persistence-mongodb-3/README.md
index 853ce16054..f0cc97619a 100644
--- a/persistence-modules/spring-boot-persistence-mongodb-3/README.md
+++ b/persistence-modules/spring-boot-persistence-mongodb-3/README.md
@@ -1,3 +1,3 @@
 # Relevant Articles
-
+- [How to Insert a HashMap Into MongoDB With Java?](https://www.baeldung.com/java-mongodb-insert-hashmap)
 - More articles: [[<--prev]](../spring-boot-persistence-mongodb-2)