diff --git a/zhenxun/builtin_plugins/web_ui/api/tabs/main/data_source.py b/zhenxun/builtin_plugins/web_ui/api/tabs/main/data_source.py
index f9ff6fca..e87647dd 100644
--- a/zhenxun/builtin_plugins/web_ui/api/tabs/main/data_source.py
+++ b/zhenxun/builtin_plugins/web_ui/api/tabs/main/data_source.py
@@ -92,7 +92,7 @@ class ApiDataSource:
         """
         version_file = Path() / "__version__"
         if version_file.exists():
-            if text := version_file.open().read():
+            if text := version_file.open(encoding="utf-8").read():
                 return text.replace("__version__: ", "").strip()
         return "unknown"