diff --git a/README.md b/README.md
index 641c602..f3fe6d2 100644
--- a/README.md
+++ b/README.md
@@ -56,11 +56,7 @@ Node
 Install with `npm install @octokit/core @octokit/webhooks-methods`
 
 ```js
-const {
-  sign,
-  verify,
-  verifyWithFallback,
-} = require("@octokit/webhooks-methods");
+import { sign, verify, verifyWithFallback } from "@octokit/webhooks-methods";
 ```
 
 </td></tr>
diff --git a/src/node/sign.ts b/src/node/sign.ts
index 9ccf234..cd57330 100644
--- a/src/node/sign.ts
+++ b/src/node/sign.ts
@@ -2,6 +2,8 @@ import { createHmac } from "node:crypto";
 import { Algorithm, type SignOptions } from "../types.js";
 import { VERSION } from "../version.js";
 
+export async function sign(secret: string, payload: string): Promise<string>;
+export async function sign(options: SignOptions, payload: string): Promise<string>;
 export async function sign(
   options: SignOptions | string,
   payload: string,
diff --git a/src/web.ts b/src/web.ts
index 094a176..e923a39 100644
--- a/src/web.ts
+++ b/src/web.ts
@@ -45,6 +45,8 @@ async function importKey(secret: string, algorithm: AlgorithmLike) {
   );
 }
 
+export async function sign(secret: string, payload: string): Promise<string>;
+export async function sign(options: SignOptions, payload: string): Promise<string>;
 export async function sign(options: SignOptions | string, payload: string) {
   const { secret, algorithm } =
     typeof options === "object"