diff --git a/attack/xss/all-encodings-of-lt.txt b/attack/xss/all-encodings-of-lt.txt
index fdda1fd..e7847ef 100644
--- a/attack/xss/all-encodings-of-lt.txt
+++ b/attack/xss/all-encodings-of-lt.txt
@@ -1,5 +1,7 @@
 <
 %3C
+%253C
+%25253C
 &lt
 &lt;
 &LT