diff --git a/lib/ansible/modules/packaging/os/yum.py b/lib/ansible/modules/packaging/os/yum.py
index 819faf0238..8c641df60f 100644
--- a/lib/ansible/modules/packaging/os/yum.py
+++ b/lib/ansible/modules/packaging/os/yum.py
@@ -128,7 +128,7 @@ options:
 
   security:
     description:
-      - If set to C(yes), then installs all security updates.
+      - If set to C(yes), and C(state=latest) then only installs updates that have been marked security related.
     default: "no"
     choices: ["yes", "no"]
     version_added: "2.4"