diff --git a/RULES.md b/RULES.md
index 0c3e22e..fc053d0 100644
--- a/RULES.md
+++ b/RULES.md
@@ -1,4 +1,4 @@
-# CodexArch — Core Rules for This Repository
+# Codex — Core Rules for This Repository
 
 This file defines the core rules that the AI code assistant (e.g. Codex in PhpStorm) must follow when working in this project.