Docker-compose: Issue while running the spring boot enabled and spring cloud config application

I want to run the Spring Boot enabled and spring cloud config project to deploy to Docker. The below is the docker-compose.yml file. But I'm getting the following error while running the file.

Error:

ERROR: yaml.parser.ParserError: while parsing a block mapping
  in "./docker-compose.yml", line 4, column 4
expected <block end>, but found '<block mapping start>'
  in "./docker-compose.yml", line 48, column 5

Below is my docker-compose.yml file:

    version: '3'

    services:
          discovery:
            image: pl.app.service/discovery-service:0.0.1-SNAPSHOT
            ports:
              - 8061:8061
          config:
            image: pl.app.service/config-service:0.0.1-SNAPSHOT
            volumes:
              - ./config-data:/config-data
            environment:
               - JAVA_OPTS=
               -DEUREKA_SERVER=http://discovery:8761/eureka
               -Dspring.cloud.config.server.native.searchLocations=/config-data
             depends_on:
              - discovery
             ports:
              - 8088:8088

      proxy-service:
        image: pl.app.service/proxy-service:0.0.1-SNAPSHOT
        environment:
          - JAVA_OPTS=
            -DEUREKA_SERVER=http://discovery:8761/eureka
        depends_on:
          - discovery
          - config
        ports:
            -8060:8060

      employee-service:
        image: pl.app.service/employee-service:0.0.1-SNAPSHOT
        environment:
          - JAVA_OPTS=
            -DEUREKA_SERVER=http://discovery:8761/eureka
            -Dspring.profiles.active=dev
        restart: on-failure
        depends_on:
          - discovery
          - config
        ports:
            -8090:8090

      department-service:
          image: pl.app.service/organization-service:0.0.1-SNAPSHOT
        environment:
          - JAVA_OPTS=
            -DEUREKA_SERVER=http://discovery:8761/eureka
            -Dspring.profiles.active=dev
        restart: on-failure
        depends_on:
          - discovery
          - config
        ports:
            -8091:8091

       organization-service:
          image: pl.app.service/organization-service:0.0.1-SNAPSHOT
        environment:
          - JAVA_OPTS=
            -DEUREKA_SERVER=http://discovery:8761/eureka
            -Dspring.profiles.active=dev
        restart: on-failure
        depends_on:
          - discovery
          - config
        ports:
            -8092:8092

I have tried multiple indentations changes for docker-compose.yml file.

The mentioned services are already built by maven. Need help in running the docker composer for the application.