Parameter data type not identified properly after upgraded 'io.swagger.core.v3' version to 2.2.2

Here is my parameters defined in my Resource class

@Schema(description = "XXX ID")
private Integer xxxId;

Below is the API spec generated before 2.2.2

- name: xxxId
  in: query
  required: false
  schema:
    type: integer
    description: XXX ID
    format: int32

After upgraded to 2.2.2 , find below API spec 

- name: xxxId
  in: query
  required: false
  schema:
    type: string
    description: XXX ID

Data type is defaulted to 'string', no change in code only swagger IO version upgradation done.

Please throw some light of this to resolve the issue.