diff --git a/backend/app/routers/auth.py b/backend/app/routers/auth.py
index f77cf67..4dba044 100644
--- a/backend/app/routers/auth.py
+++ b/backend/app/routers/auth.py
@@ -106,15 +106,20 @@ def change_password(
     """修改当前用户密码"""
     from app.core.auth import verify_password, get_password_hash
     
+    # 在当前session中重新查询用户
+    user = db.query(User).filter(User.f99_90_id == current_user.f99_90_id).first()
+    if not user:
+        raise HTTPException(status_code=404, detail="用户不存在")
+    
     # 验证旧密码
-    if not verify_password(old_password, current_user.password):
+    if not verify_password(old_password, user.password):
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail="当前密码错误"
         )
     
     # 更新密码
-    current_user.password = get_password_hash(new_password)
+    user.password = get_password_hash(new_password)
     db.commit()
     
     return {"message": "密码修改成功"}
diff --git a/config/VERSION b/config/VERSION
index b36f410..8cb3856 100644
--- a/config/VERSION
+++ b/config/VERSION
@@ -2,7 +2,7 @@
 # Version Configuration for Zodiac Collection Management System
 
 # 当前版本号 (语义化版本：主版本。次版本.修订版)
-VERSION=1.1.2
+VERSION=1.1.3
 
 # 版本代号 (可选)
 VERSION_CODENAME="新生"