diff --git a/patterns/solid/README.md b/patterns/solid/README.md
index cae346e3c9..f5146732a0 100644
--- a/patterns/solid/README.md
+++ b/patterns/solid/README.md
@@ -2,4 +2,4 @@
 
 - [A Solid Guide to Solid Principles](https://www.baeldung.com/solid-principles)
 - [Single Responsibility Principle in Java](https://www.baeldung.com/java-single-responsibility-principle)
-
+- [Open/Closed Principle in Java](https://www.baeldung.com/java-open-closed-principle)