Redis healthcheck not working with spring boot app

I am trying to do request on http://localhost:8080/actuator/health to check if everything is UP.

When communication is between locally run JAVAAPP -> REDIS in docker container the status is UP.

But when communication is between dockereized JAVAAPP -> REDIS in docker container the status is DOWN

"redis": {"status": "DOWN","details": {"error": "org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis"        }    }

application.properties has :

spring.redis.host=redisspring.redis.port=6379

docker-compose:

    version: "3.9"services:    JAVAPP:    container_name: JAVAPP    image: JAVAPP:latest    ports:      - "8080:8080"  redis:    container_name: redis    image: redis:6.0    restart: always    ports:      - "6379:6379"

I tried do add env variables in dockerfile and in docker-compose.

Do you have any ideas why is it working locally but not between containers?