diff --git a/app/blueprints/api/tasks/handlers.py b/app/blueprints/api/tasks/handlers.py
index db823d5..b59e395 100644
--- a/app/blueprints/api/tasks/handlers.py
+++ b/app/blueprints/api/tasks/handlers.py
@@ -4,6 +4,9 @@ from app.models.task import Task
 def success_state(task_id):
     task = Task.query.get(task_id)
 
+    if not task:
+        return
+
     task.status = "SUCCESS"
     task.status_message = "задача выполнена успешно"
     
@@ -12,6 +15,9 @@ def success_state(task_id):
 def failure_state(task_id, exception):
     task = Task.query.get(task_id)
 
+    if not task:
+        return
+
     task.status = "FAILURE"
     task.status_message = f"произошла ошибка {str(exception)}"
     
@@ -20,6 +26,9 @@ def failure_state(task_id, exception):
 def run_state(task_id, task_record_id):
     task = Task.query.get(task_record_id)
 
+    if not task:
+        return
+
     task.task_id = task_id
     task.status = "RUNNING"
     task.status_message = "задача запущена"