diff --git a/api/core/workflow/nodes/trigger_schedule/entities.py b/api/core/workflow/nodes/trigger_schedule/entities.py
index 5167103f18..a515d02d55 100644
--- a/api/core/workflow/nodes/trigger_schedule/entities.py
+++ b/api/core/workflow/nodes/trigger_schedule/entities.py
@@ -11,9 +11,7 @@ class TriggerScheduleNodeData(BaseNodeData):
     """
 
     mode: str = Field(default="visual", description="Schedule mode: visual or cron")
-    frequency: str | None = Field(
-        default=None, description="Frequency for visual mode: hourly, daily, weekly, monthly"
-    )
+    frequency: str | None = Field(default=None, description="Frequency for visual mode: hourly, daily, weekly, monthly")
     cron_expression: str | None = Field(default=None, description="Cron expression for cron mode")
     visual_config: dict | None = Field(default=None, description="Visual configuration details")
     timezone: str = Field(default="UTC", description="Timezone for schedule execution")