Build container ran out of memory

I'm deploying a Next.js 14 application with AWS Amplify Gen2, but the builds consistently fail with the error: "Build container ran out of memory".

As suggested in the AWS documentation, I removed .next/cache/**/* from the cache.paths section of my amplify.yml file. I also increased the NODE_OPTIONS environment variable to allocate more memory but that doesn't seem to help

Below is my current amplify.yml configuration:

version: 1
backend:
  phases:
    build:
      commands:
        - corepack enable
        - pnpm install --frozen-lockfile
        - pnpm exec ampx pipeline-deploy --branch $AWS_BRANCH --app-id $AWS_APP_ID
frontend:
  phases:
    build:
      commands:
        - export NODE_OPTIONS="--max-old-space-size=12288"
        - pnpm run build
  artifacts:
    baseDirectory: .next
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*