diff --git a/firmware/main/hal/hal.cpp b/firmware/main/hal/hal.cpp
index 648c546..875d628 100644
--- a/firmware/main/hal/hal.cpp
+++ b/firmware/main/hal/hal.cpp
@@ -164,7 +164,7 @@ void Hal::startXiaozhi()
     });
 
     // Start stackchan update task
-    xTaskCreate(_stackchan_update_task, "stackchan", 4096, NULL, 5, NULL);
+    xTaskCreatePinnedToCore(_stackchan_update_task, "stackchan", 4096, NULL, 5, NULL, 1);
 
     hal_bridge::start_xiaozhi_app();
 }