diff --git a/SECURITY.md b/SECURITY.md
index ac3c0b2831..ece29a0739 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -5,8 +5,11 @@
 | Version | Supported          |
 | ------- | ------------------ |
 | < 2.2   | :x:                |
-| 2.2.x   | :white_check_mark: |
-| 3.0.x   | :white_check_mark: |
+| 2.2.x   | :x:                |
+| 3.0.x   | :x:                |
+| 3.1.x   | :white_check_mark: |
+| 4.0.x   | :x:                |
+| 4.1.x   | :white_check_mark: |
 
 ## Reporting a Vulnerability
 Contact the [Apache Software Foundation Security Team](mailto:security@trafficcontrol.apache.org)