diff --git a/PythonProject/dao/cla_dao.py b/PythonProject/dao/cla_dao.py
index 3aa0bbe..12bc50c 100644
--- a/PythonProject/dao/cla_dao.py
+++ b/PythonProject/dao/cla_dao.py
@@ -60,7 +60,6 @@ def get_class_for_delete(id: int, session):
         "class_teacher_id": obj.class_teacher_id,
     }
 
-
 def hard_delete_class(id: int, session):
     try:
         obj = (
diff --git a/PythonProject/util/database.py b/PythonProject/util/database.py
index 7c72545..cb96327 100644
--- a/PythonProject/util/database.py
+++ b/PythonProject/util/database.py
@@ -1,7 +1,7 @@
 from sqlalchemy import create_engine
 from sqlalchemy.orm import declarative_base,sessionmaker
 
-db_url = 'mysql+pymysql://root:123456@127.0.0.1:3306/ai0824?charset=utf8mb4'
+db_url = 'mysql+pymysql://root:123456@192.168.5.12:3306/ai0824?charset=utf8mb4'
 engine = create_engine(db_url,pool_size=50)
 Base = declarative_base()