No brokers available error when trying to connect from one docker container to a kafka container on the same network

I am trying to user a docker-compose to spin up a broker, zookeeper and 2 of my own apps.
They all build and run like normal but then when I try to create a kafka producer or consumer from within my app, it throws an exception saying there are no available brokers.

Here is my docker-compose.yml:

version: '3'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    container_name: zookeeper
    networks: 
      - kafka_network
    environment:
      ZOOKEEPER_CLIENT_PORT: '2181'

  kafka:
    container_name: kafka
    image: confluentinc/cp-kafka:latest
    depends_on:
      - zookeeper
    networks: 
      - kafka_network
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
      KAFKA_LISTENERS: EXTERNAL_SAME_HOST://:29092,INTERNAL://:9092
      KAFKA_ADVERTISED_LISTENERS: INTERNAL://kafka:9092,EXTERNAL_SAME_HOST://localhost:29092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL_SAME_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_CONFLUENT_TOPIC_REPLICATION_FACTOR: 3

  csir-api:
    build:
      context: app/
    depends_on:
      - kafka
    networks:
      - kafka_network

  csir-api-entry:
    build:
      context: app-entry/
    ports: 
      - 8080:8080
    depends_on:
      - kafka
    networks:
      - kafka_network

networks:
  kafka_network:
    name: kafka_docker_example_net

Here is how I am trying to connect within my app:

consumer = KafkaConsumer(
    ['clickup-task-created', 'clickup-task-updated', 'sheets-task-updated', 'sheets-task-created'],
     bootstrap_servers=['kafka:9092'],
     auto_offset_reset='earliest',
     enable_auto_commit=True,
     group_id='my-group',
     value_deserializer=lambda x: loads(x.decode('utf-8')))

    producer = KafkaProducer(
        bootstrap_servers=['kafka:9092'],
        value_serializer=lambda x: 
        dumps(x).encode('utf-8'),
    )

Here is the error being thrown:

kafka.errors.NoBrokersAvailable: NoBrokersAvailable

I expected the producer and consumer to connect on the same network and allow me to consume and produce to the kafka broker.