diff --git a/common-tasks/software-update-dom0.md b/common-tasks/software-update-dom0.md
index c7d06ef0..49a038c0 100644
--- a/common-tasks/software-update-dom0.md
+++ b/common-tasks/software-update-dom0.md
@@ -52,6 +52,8 @@ Of course, command line tools are still available for accomplishing various upda
 
 ### How to downgrade a specific package
 
+**WARNING:** Downgrading a package can expose your system to security vulnerabilities.
+
 1.  Download an older version of the package:
 
     ~~~