diff --git a/liteyuki/plugins/liteyuki_webdash/main.py b/liteyuki/plugins/liteyuki_webdash/main.py
index 0864184..40506b1 100644
--- a/liteyuki/plugins/liteyuki_webdash/main.py
+++ b/liteyuki/plugins/liteyuki_webdash/main.py
@@ -2,6 +2,9 @@ from fastapi import FastAPI
 from nonebot import get_app
 from .restful_api import *
 
-@app.get("/")
+
+@app.get("/ping")
 async def root():
-    return {"message": "Hello World"}
+    return {
+            "message": "pong"
+    }
diff --git a/liteyuki/utils/message/html_tool.py b/liteyuki/utils/message/html_tool.py
index 5a1fe68..1674804 100644
--- a/liteyuki/utils/message/html_tool.py
+++ b/liteyuki/utils/message/html_tool.py
@@ -73,7 +73,7 @@ async def template2image(
             template_path=template_path,
             **templates,
         )
-        async with aiofiles.open(os.path.join(template_path, "latest-debug.html"), "w", encoding="utf-8") as f:
+        async with aiofiles.open(os.path.join(template_path, f"debug-{random_hex_string(6)}.html"), "w", encoding="utf-8") as f:
             await f.write(raw_html)
         nonebot.logger.info("Debug HTML: %s" % f"debug-{random_hex_string(6)}.html")