diff --git a/docs/gateway/security/index.md b/docs/gateway/security/index.md
index bacaccc73c2..faa339efb22 100644
--- a/docs/gateway/security/index.md
+++ b/docs/gateway/security/index.md
@@ -197,7 +197,7 @@ Use this when auditing access or deciding what to back up:
 - **File-backed secrets payload (optional)**: `~/.openclaw/secrets.json`
 - **Legacy OAuth import**: `~/.openclaw/credentials/oauth.json`
 
-## Security Audit Checklist
+## Security audit checklist
 
 When the audit prints findings, treat this as a priority order: