diff --git a/pywxdump/db/utils/__init__.py b/pywxdump/db/utils/__init__.py
index 371bcff..84bff08 100644
--- a/pywxdump/db/utils/__init__.py
+++ b/pywxdump/db/utils/__init__.py
@@ -8,3 +8,6 @@
 from ._loger import db_loger
 from .common_utils import timestamp2str, xml2dict, silk2audio, bytes2str, get_md5, name2typeid, typeid2name, \
     type_converter, match_BytesExtra, db_error, download_file, dat2img
+
+__all__ = ["db_loger", "timestamp2str", "xml2dict", "silk2audio", "bytes2str", "get_md5", "name2typeid", "typeid2name",
+           "type_converter", "match_BytesExtra", "db_error", "download_file", "dat2img"]
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 402f51a..d66e4e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,9 +14,6 @@ lz4
 lxml
 pandas
 
-flask
-flask_cors
-
 fastapi
 uvicorn
 python-dotenv