Jackson parsing issue

In my spring applicaiton, I have Rest api, when I call it using postmanand sending this json

{"incomeValue":"Test\\t"}

It gives

Caused by: com.fasterxml.jackson.core.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 9)): has to be escaped using backslash to be included in string value

The application is deployed on tomcat.and I can't remove \t