diff --git a/SECURITY.md b/SECURITY.md
index 8ef229d..a66f42c 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -8,7 +8,9 @@ currently being supported with security updates.
 | Version | Supported          |
 | ------- | ------------------ |
 | 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x               : |
 | 4.1.x   | :white_check_mark: |
+| 4.0.x   | :x               : |
 
 ## Reporting a Vulnerability