Minimum permission required to upload files to S3 bucket

gistfile1.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "s3:PutObject"
      ],
      "Sid": "Stmt1377549922000",
      "Resource": [
        "arn:aws:s3:::bucket-name/*"
      ],
      "Effect": "Allow"
    }
  ]
}