diff --git a/app/models/user.py b/app/models/user.py
index 81506e1..32d1fa5 100644
--- a/app/models/user.py
+++ b/app/models/user.py
@@ -112,6 +112,7 @@ class UserCreate(User):
 class UserModify(UserCreate):
     service_ids: list[int] | None = Field(None)
     data_limit_reset_strategy: UserDataUsageResetStrategy | None = Field(None)
+    expire_strategy: UserExpireStrategy | None = Field(None)
     model_config = ConfigDict(
         json_schema_extra={
             "example": {