diff --git a/2024/08/chat_demo1/tools/docker-compose.yaml b/2024/08/chat_demo1/tools/docker-compose.yaml
index 3165d68..eb2afae 100644
--- a/2024/08/chat_demo1/tools/docker-compose.yaml
+++ b/2024/08/chat_demo1/tools/docker-compose.yaml
@@ -9,7 +9,6 @@ services:
       KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://:9092
       KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
-      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:9093
       KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
       KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
       KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1