diff --git a/README.md b/README.md
index 2e9f0c3..03bae59 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ given to the materials. We welcome contributions in order to improve the trainin
 | [a.6-forensic](https://www.misp-project.org/misp-training/a.6-forensic.pdf) | [source](https://github.com/MISP/misp-training/tree/master/a.6-forensic) |
 | [a.7-rest-API](https://www.misp-project.org/misp-training/a.7-rest-API.pdf) | [source](https://github.com/MISP/misp-training/tree/master/a.7-rest-API) |
 | [a.8-dev-hands-on.pdf](https://www.misp-project.org/misp-training/a.8-dev-hands-on.pdf) | [source](https://github.com/MISP/misp-training/tree/master/a.8-dev-hands-on) |
+| [a.9-restsearch-dev.pdf](https://www.misp-project.org/misp-training/a.9-restsearch-dev.pdf) |[source](https://github.com/MISP/misp-training/tree/master/a.9-restsearch-dev) |
 | [b.1-best-practices-in-threat-intelligence](https://www.misp-project.org/misp-training/b.1-best-practices-in-threat-intelligence.pdf) | [source](https://github.com/MISP/misp-training/tree/master/best-practices-in-threat-intelligence)
 | [b.2-turning-data-into-actionable-intelligence](https://www.misp-project.org/misp-training/b.2-turning-data-into-actionable-intelligence.pdf) | [source](https://github.com/MISP/misp-training/tree/master/b.2-turning-data-into-actionable-intelligence)