diff --git a/api/configs/feature/__init__.py b/api/configs/feature/__init__.py
index a110379794..c22a89b158 100644
--- a/api/configs/feature/__init__.py
+++ b/api/configs/feature/__init__.py
@@ -437,7 +437,7 @@ class ImageFormatConfig(BaseSettings):
 
 
 class CeleryBeatConfig(BaseSettings):
-    CELERY_BEAT_SCHEDULER_TIME: str = Field(
+    CELERY_BEAT_SCHEDULER_TIME: int = Field(
         description='the time of the celery scheduler, default to 1 day',
         default=1,
     )
diff --git a/api/extensions/ext_celery.py b/api/extensions/ext_celery.py
index 7b17545764..ae9a075340 100644
--- a/api/extensions/ext_celery.py
+++ b/api/extensions/ext_celery.py
@@ -43,7 +43,7 @@ def init_app(app: Flask) -> Celery:
         "schedule.clean_embedding_cache_task",
         "schedule.clean_unused_datasets_task",
     ]
-    day = int(app.config["CELERY_BEAT_SCHEDULER_TIME"])
+    day = app.config["CELERY_BEAT_SCHEDULER_TIME"]
     beat_schedule = {
         'clean_embedding_cache_task': {
             'task': 'schedule.clean_embedding_cache_task.clean_embedding_cache_task',