diff --git a/testing-modules/testing-libraries-2/README.md b/testing-modules/testing-libraries-2/README.md
index 3325600b5e..f8361904b8 100644
--- a/testing-modules/testing-libraries-2/README.md
+++ b/testing-modules/testing-libraries-2/README.md
@@ -1,3 +1,4 @@
 ### Relevant Articles:
 
 - [Guide to the System Rules Library](https://www.baeldung.com/java-system-rules-junit)
+- [Guide to the System Stubs Library](https://www.baeldung.com/java-system-stubs)