diff --git a/persistence-modules/java-mongodb-2/README.md b/persistence-modules/java-mongodb-2/README.md
index 1b49e11499..7b08569d9d 100644
--- a/persistence-modules/java-mongodb-2/README.md
+++ b/persistence-modules/java-mongodb-2/README.md
@@ -2,4 +2,4 @@
 
 This module contains articles about MongoDB in Java. 
 
-
+- [Guide to Upsert in MongoDB](https://www.baeldung.com/mongodb-upsert)