diff --git a/core-java-modules/core-java-21/README.md b/core-java-modules/core-java-21/README.md
index 2c51db275a..b2e6aa6442 100644
--- a/core-java-modules/core-java-21/README.md
+++ b/core-java-modules/core-java-21/README.md
@@ -1,3 +1,4 @@
 ## Relevant Articles
 - [Sequenced Collections in Java 21](https://www.baeldung.com/java-21-sequenced-collections)
 - [String Templates in Java 21](https://www.baeldung.com/java-21-string-templates)
+- [Unnamed Classes and Instance Main Methods in Java 21](https://www.baeldung.com/java-21-unnamed-class-instance-main)