upload large file causing Error: "Payload content length greater than maximum allowed: 1048576"

I am just trying to invoke one lambda function from another lambda function, and i am sending a payload into that lambda function. If I paas a payload of size upto 1 mb, then i don't get this error, this error arises when the payload size is greater than 1 mb only.

import * as AWS from "aws-sdk";

const lambda = new AWS.Lambda({
  region: "us-east-1",
  endpoint: "http://localhost:3002",
});

const params = {
  FunctionName: "myFunction", // the lambda function we are going to invoke
  InvocationType: "RequestResponse",
  LogType: "Tail",
  Payload: JSON.stringify(data),
 };

const lambdaResult = await lambda.invoke(params).promise();