diff --git a/hr_employee_calendar_planning/models/hr_employee.py b/hr_employee_calendar_planning/models/hr_employee.py
index ae4ca0cfe8a..2aa64463abd 100644
--- a/hr_employee_calendar_planning/models/hr_employee.py
+++ b/hr_employee_calendar_planning/models/hr_employee.py
@@ -188,9 +188,7 @@ class HrEmployeeCalendar(models.Model):
         string="End Date",
     )
     employee_id = fields.Many2one(
-        comodel_name="hr.employee",
-        string="Employee",
-        required=True,
+        comodel_name="hr.employee", string="Employee", required=True, ondelete="cascade"
     )
     company_id = fields.Many2one(related="employee_id.company_id")
     calendar_id = fields.Many2one(
@@ -198,6 +196,7 @@ class HrEmployeeCalendar(models.Model):
         string="Working Time",
         required=True,
         check_company=True,
+        ondelete="restrict",
     )
 
     _sql_constraints = [