When I run discord bot with discord.js
[my\path\discord.js\bot]
> node bot.js
C:\Users\username\node_modules\discord.js\src\rest\APIRequest.js:33
agent ??= new https.Agent({ ...this.client.options.http.agent, keepAlive: true });
^^^
SyntaxError: Unexpected token '??='
at wrapSafe (internal/modules/cjs/loader.js:1001:16)
at Module._compile (internal/modules/cjs/loader.js:1049:27)
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 Module.require (internal/modules/cjs/loader.js:974:19)
at require (internal/modules/cjs/helpers.js:93:18)
at Object.<anonymous> (C:\Users\username\node_modules\discord.js\src\rest\RESTManager.js:4:20)
at Module._compile (internal/modules/cjs/loader.js:1085:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
[my\path\discord.js\bot]
>
I think it's rest client syntax error How can I fix it?