diff --git a/core-java-collections-list/README.md b/core-java-collections-list/README.md
index a35e714006..d1112047ba 100644
--- a/core-java-collections-list/README.md
+++ b/core-java-collections-list/README.md
@@ -26,3 +26,4 @@
 - [ClassCastException: Arrays$ArrayList cannot be cast to ArrayList](https://www.baeldung.com/java-classcastexception-arrays-arraylist)
 - [Flattening Nested Collections in Java](http://www.baeldung.com/java-flatten-nested-collections)
 - [Intersection of Two Lists in Java](https://www.baeldung.com/java-lists-intersection)
+- [Multi Dimensional ArrayList in Java](https://www.baeldung.com/java-multi-dimensional-arraylist)
diff --git a/persistence-modules/spring-boot-persistence/README.MD b/persistence-modules/spring-boot-persistence/README.MD
index 8988fb4ebd..cab6be1ec8 100644
--- a/persistence-modules/spring-boot-persistence/README.MD
+++ b/persistence-modules/spring-boot-persistence/README.MD
@@ -5,3 +5,5 @@
 - [Quick Guide on data.sql and schema.sql Files in Spring Boot](http://www.baeldung.com/spring-boot-data-sql-and-schema-sql)
 - [Configuring a Tomcat Connection Pool in Spring Boot](https://www.baeldung.com/spring-boot-tomcat-connection-pool)
 - [Hibernate Field Naming with Spring Boot](https://www.baeldung.com/hibernate-field-naming-spring-boot)
+- [Integrating Spring Boot with HSQLDB](https://www.baeldung.com/spring-boot-hsqldb)
+