Cannot find module 'utf8'

[caevv]

import { Construct } from "constructs";
import { Stack } from "aws-cdk-lib";
import { SesSmtpCredentials } from "ses-smtp-credentials-cdk/cdkv2";

export class EmailInitialiser extends Construct {
  public readonly username: string;
  public readonly password: string;

  constructor(scope: Construct, id: string) {
    super(scope, id);

    const smtpCredentials = new SesSmtpCredentials(this, id + "Credentials", {
      region: Stack.of(scope).region,
    });
    this.username = smtpCredentials.username();
    this.password = smtpCredentials.password();
  }
}

Received response status [FAILED] from custom resource. Message returned: Error: Cannot find module 'utf8'
Require stack:
- /var/task/index.js
- /var/runtime/UserFunction.js
- /var/runtime/Runtime.js
- /var/runtime/index.js
at _loadUserApp (/var/runtime/UserFunction.js:221:13)
at Object.module.exports.load (/var/runtime/UserFunction.js:279:17)
at Object.<anonymous> (/var/runtime/index.js:43:34)
at Module._compile (internal/modules/cjs/loader.js:1085:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
at Module.load (internal/modules/cjs/loader.js:950:32)
at Function.Module._load (internal/modules/cjs/loader.js:790:12)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:75:12)

[ChristopheBougere]

Same error here with cdkv2

[plumdog]

I believe I have fixed this in https://www.npmjs.com/package/ses-smtp-credentials-cdk/v/1.2.3