Update SECURITY.md
diff --git a/SECURITY.md b/SECURITY.md
index ee1c6a2..ef09a9b 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -7,7 +7,7 @@
 | Version | Supported          |
 | ------- | ------------------ |
 | 4.8.x   | :white_check_mark: |
-| < 4.7.x   | :x:                |
+| <= 4.7.x   | :x:                |
 
 ## Reporting a Vulnerability