From 8a11ea03ed45321e8fd292e4c671ece626e6c23d Mon Sep 17 00:00:00 2001
From: Blaine Bublitz <blaine@arcjet.com>
Date: Mon, 27 Jan 2025 15:19:53 -0700
Subject: [PATCH] fix(arcjet): Ensure Characteristics are readonly type on
 protect signup options

---
 arcjet/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arcjet/index.ts b/arcjet/index.ts
index 7c81d5165..925c66b9a 100644
--- a/arcjet/index.ts
+++ b/arcjet/index.ts
@@ -1242,7 +1242,7 @@ export function shield(options: ShieldOptions): Primitive<{}> {
   ];
 }
 
-export type ProtectSignupOptions<Characteristics extends string[]> = {
+export type ProtectSignupOptions<Characteristics extends readonly string[]> = {
   rateLimit: SlidingWindowRateLimitOptions<Characteristics>;
   bots: BotOptions;
   email: EmailOptions;