Update free-programming-books-subjects.md (#6836)

books/free-programming-books-subjects.md

@@ -231,7 +231,7 @@ Books that cover a specific programming language can be found in the  [BY PROGRA
 * [Docker Jumpstart](http://odewahn.github.io/docker-jumpstart/) - Andrew Odewahn
 * [Docker Tutorial](https://www.tutorialspoint.com/docker/) - Tutorials Point (HTML, PDF)
 * [Kubernetes Deployment & Security Patterns](https://resources.linuxfoundation.org/LF+Projects/CNCF/TheNewStack_Book2_KubernetesDeploymentAndSecurityPatterns.pdf) - Alex Williams (PDF)
-* [Kubernetes for Full-Stack Developers](https://www.digitalocean.com/community/curriculums/kubernetes-for-full-stack-developers) - Jamon Camisso, Hanif Jetha, Katherine Juell (PDF, EPUB)
+* [Kubernetes for Full-Stack Developers](https://www.digitalocean.com/community/books/digitalocean-ebook-kubernetes-for-full-stack-developers) - Jamon Camisso, Hanif Jetha, Katherine Juell (PDF, EPUB)
 * [Uncomplicating Kubernetes](https://livro.descomplicandokubernetes.com.br/en/) - Jeferson Fernando