diff --git a/sql/mysql/mall-promotion-kefu.sql b/sql/mysql/mall-promotion-kefu.sql
index 67054cbb1..83742e4a8 100644
--- a/sql/mysql/mall-promotion-kefu.sql
+++ b/sql/mysql/mall-promotion-kefu.sql
@@ -3,7 +3,7 @@ CREATE TABLE `promotion_kefu_conversation` (
     `id` bigint NOT NULL AUTO_INCREMENT COMMENT '编号',
     `user_id` bigint NOT NULL COMMENT '会话所属用户',
     `last_message_time` datetime NOT NULL COMMENT '最后聊天时间',
-    `last_message_content` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '最后聊天内容',
+    `last_message_content` varchar(2048) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '最后聊天内容',
     `last_message_content_type` int NOT NULL COMMENT '最后发送的消息类型',
     `admin_pinned` bit(1) NOT NULL DEFAULT b'0' COMMENT '管理端置顶',
     `user_deleted` bit(1) NOT NULL DEFAULT b'0' COMMENT '用户是否可见',
@@ -27,7 +27,7 @@ CREATE TABLE `promotion_kefu_message` (
     `receiver_id` bigint DEFAULT NULL COMMENT '接收人编号',
     `receiver_type` int DEFAULT NULL COMMENT '接收人类型',
     `content_type` int NOT NULL COMMENT '消息类型',
-    `content` varchar(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '消息',
+    `content` varchar(2048) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '消息',
     `read_status` bit(1) NOT NULL DEFAULT b'0' COMMENT '是否已读',
     `creator` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT '' COMMENT '创建者',
     `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',