diff --git a/persistence-modules/spring-data-jpa-repo-4/README.md b/persistence-modules/spring-data-jpa-repo-4/README.md
index 92f4158df8..e7c9a17223 100644
--- a/persistence-modules/spring-data-jpa-repo-4/README.md
+++ b/persistence-modules/spring-data-jpa-repo-4/README.md
@@ -7,4 +7,5 @@
 - [When to Use the getReferenceById() and findById() Methods in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-getreferencebyid-findbyid-methods)
 - [Implementing Persistable-Only Entities in Spring Data JPA](https://www.baeldung.com/spring-data-persistable-only-entities)
 - [Storing PostgreSQL JSONB Using Spring Boot and JPA](https://www.baeldung.com/spring-boot-jpa-storing-postgresql-jsonb)
+- [“Not a Managed Type” Exception in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-not-managed-type-exception)
 - More articles: [[<-- prev]](../spring-data-jpa-repo-3)