diff --git a/libraries-4/README.md b/libraries-4/README.md
index 0dee9f1c1e..c21e4e06e2 100644
--- a/libraries-4/README.md
+++ b/libraries-4/README.md
@@ -18,4 +18,5 @@ Remember, for advanced libraries like [Jackson](/jackson) and [JUnit](/testing-m
 - [Guide to JDeferred](https://www.baeldung.com/jdeferred)
 - [Introduction to MBassador](https://www.baeldung.com/mbassador)
 - [Using Pairs in Java](https://www.baeldung.com/java-pairs)
+- [Analyze, Generate and Transform Code Using Spoon in Java](https://www.baeldung.com/java-spoon-analyze-generate-transform-code)
 - More articles [[<-- prev]](/libraries-3) [[next -->]](/libraries-5)