diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtils.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtils.kt
index 231884f..3e7ee5b 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtils.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/port/GasUtils.kt
@@ -48,7 +48,9 @@ object GasUtils {
         GlobalScope.launch(Dispatchers.Default) {
             while (true) {
                 delay(30000)
-                openPorts()
+                launch(Dispatchers.Main) {
+                    openPorts()
+                }
             }
         }
     }