Pipeline aborted due to error in password field logstash

Hi Nick, here is my config

elasticsearch {
hosts => ["http://x.x.x.x:9200"]
manage_template => false
template_name => "network-*"
index => "network-%{+YYYY.MM.dd}"
document_type => "%{type}"
document_id => "%{fingerprint}"
user => "xxxx"
password => "xxxSys201^"
}