diff --git a/README.md b/README.md
index 6cccecc..ae4e2b5 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,10 @@ This repository is created as an online bookmark for useful links, resources and
         <td><a href="https://github.com/fireeye/capa-rules">fireeye/capa-rules</a></td>
         <td>Standard collection of rules for capa: the tool for enumerating the capabilities of programs</td>
     </tr>
+    <tr>
+        <td><a href="https://github.com/FSecureLABS/leonidas">FSecureLABS/leonidas</a></td>
+        <td>Automated Attack Simulation in the Cloud, complete with detection use cases.</td>
+    </tr>
     <tr>
         <td><a href="https://github.com/jymcheong/AutoTTP">jymchoeng/AutoTTP</a></td>
         <td>Automated Tactics Techniques & Procedures</td>