diff --git a/database/migrations/20250823224531_system_host.php b/database/migrations/20250823224531_system_host.php
index 9d69e4f..694d1d6 100644
--- a/database/migrations/20250823224531_system_host.php
+++ b/database/migrations/20250823224531_system_host.php
@@ -1,7 +1,6 @@
 <?php
 
 use think\migration\Migrator;
-use think\migration\db\Column;
 
 class SystemHost extends Migrator
 {
@@ -30,19 +29,19 @@ class SystemHost extends Migrator
     {
         $table = $this->table('system_host')
             ->setComment('系统节点表')
-            ->addColumn('node_id', 'string', ['limit' => '100', 'null' => '0', 'comment' => '节点ID {text}', ])
-            ->addColumn('ip_address', 'string', ['limit' => '45', 'null' => '1', 'comment' => 'IP地址 {text}', ])
-            ->addColumn('status', 'integer', ['limit' => '1', 'null' => '0', 'default' => '1', 'comment' => '状态 {switch} (0:离线,1:在线)', ])
-            ->addColumn('last_heartbeat_at', 'datetime', ['null' => '1', 'comment' => '最后心跳时间 {date}', ])
-            ->addColumn('os_info', 'string', ['limit' => '255', 'null' => '1', 'comment' => '系统信息 {text}', ])
-            ->addColumn('php_version', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'PHP版本 {text}', ])
-            ->addColumn('cpu_load', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'CPU负载 {text}', ])
-            ->addColumn('memory_usage', 'biginteger', ['null' => '1', 'comment' => '内存占用(byte) {text}', ])
-            ->addColumn('disk_free', 'biginteger', ['null' => '1', 'comment' => '磁盘可用空间(byte) {text}', ])
-            ->addColumn('disk_total', 'biginteger', ['null' => '1', 'comment' => '磁盘总空间(byte) {text}', ])
-            ->addColumn('create_time', 'int unsigned', ['null' => '1', 'comment' => '首次运行时间 {date}', ])
-            ->addColumn('update_time', 'int unsigned', ['null' => '1', 'comment' => '更新时间 {date}', ])
-            ->addIndex('node_id',['unique'=>true])
+            ->addColumn('node_id', 'string', ['limit' => '100', 'null' => '0', 'comment' => '节点ID {text}'])
+            ->addColumn('ip_address', 'string', ['limit' => '45', 'null' => '1', 'comment' => 'IP地址 {text}'])
+            ->addColumn('status', 'integer', ['limit' => '1', 'null' => '0', 'default' => '1', 'comment' => '状态 {switch} (0:离线,1:在线)'])
+            ->addColumn('last_heartbeat_at', 'datetime', ['null' => '1', 'comment' => '最后心跳时间 {date}'])
+            ->addColumn('os_info', 'string', ['limit' => '255', 'null' => '1', 'comment' => '系统信息 {text}'])
+            ->addColumn('php_version', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'PHP版本 {text}'])
+            ->addColumn('cpu_load', 'string', ['limit' => '50', 'null' => '1', 'comment' => 'CPU负载 {text}'])
+            ->addColumn('memory_usage', 'biginteger', ['null' => '1', 'comment' => '内存占用(byte) {text}'])
+            ->addColumn('disk_free', 'biginteger', ['null' => '1', 'comment' => '磁盘可用空间(byte) {text}'])
+            ->addColumn('disk_total', 'biginteger', ['null' => '1', 'comment' => '磁盘总空间(byte) {text}'])
+            ->addColumn('create_time', 'int', ['null' => '1', 'signed' => '0', 'comment' => '首次运行时间 {date}'])
+            ->addColumn('update_time', 'int', ['null' => '1', 'signed' => '0', 'comment' => '更新时间 {date}'])
+            ->addIndex('node_id', ['unique' => true])
             ->create();
     }
 }