diff --git a/src/blrec/setting/models.py b/src/blrec/setting/models.py
index daa0232..75231a3 100644
--- a/src/blrec/setting/models.py
+++ b/src/blrec/setting/models.py
@@ -315,7 +315,7 @@ class TaskOptions(BaseModel):
 
 class TaskSettings(TaskOptions):
     # must use the real room id rather than the short room id!
-    room_id: Annotated[int, Field(ge=1, le=99999999)]
+    room_id: Annotated[int, Field(ge=1, lt=2**32)]
     enable_monitor: bool = True
     enable_recorder: bool = True