Add authentification bypass
diff --git a/SQL Injection/README.md b/SQL Injection/README.md
index 842b136238..a831e98384 100644
--- a/SQL Injection/README.md	
+++ b/SQL Injection/README.md	
@@ -292,6 +292,7 @@ or 1=1--
 or 1=1#
 or 1=1/*
 admin' --
+admin' -- -
 admin' #
 admin'/*
 admin' or '2' LIKE '1

admin' -- - (variant of pre-existing)