diff --git a/frontend/src/views/Home.vue b/frontend/src/views/Home.vue
index 8a1f466..d9398d9 100644
--- a/frontend/src/views/Home.vue
+++ b/frontend/src/views/Home.vue
@@ -179,6 +179,7 @@ export default {
     return {
       serverConfig: {
         enableTranslate: true,
+        enableUploadFile: true,
         loaderUrl: ''
       },
       form: {
diff --git a/models/database.py b/models/database.py
index ab358a6..3e48aa3 100644
--- a/models/database.py
+++ b/models/database.py
@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-import contextlib
 from typing import *
 
 import sqlalchemy.ext.declarative
@@ -22,13 +21,5 @@ def init(_debug):
     OrmBase.metadata.create_all(_engine)
 
 
-@contextlib.contextmanager
-def get_session() -> ContextManager[sqlalchemy.orm.Session]:
-    session = _DbSession()
-    try:
-        yield session
-    except BaseException:
-        session.rollback()
-        raise
-    finally:
-        session.close()
+def get_session():
+    return _DbSession()
diff --git a/requirements.txt b/requirements.txt
index ec72345..31b6527 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 aiohttp==3.7.4
 Brotli==1.0.9
 pycryptodome==3.10.1
-sqlalchemy==1.3.13
+sqlalchemy==1.4.31
 tornado==6.1.0