How can i find why this is happening, I create one secret with the policy , but when i run refresh it show me this changes - but is the same with the policy

--outputs:--
      + policy                     : (json) {
          + Statement: [
          +     [0]: {
                  + Action   : "secretsmanager:GetSecretValue"
                  + Effect   : "Allow"
                  + Principal: {
                      + Service: "<http://kafka.amazonaws.com|kafka.amazonaws.com>"
                    }
                  + Resource : "arn:aws:secretsmanager:xxxxx"
                  + Sid      : "AWSKafkaResourcePolicy"
                }
            ]
          + Version  : "2012-10-17"
        }