diff --git a/.deploy/deploy-dev.yaml b/.deploy/deploy-dev.yaml
index 980513d..e1d43a9 100644
--- a/.deploy/deploy-dev.yaml
+++ b/.deploy/deploy-dev.yaml
@@ -20,4 +20,4 @@ services:
 
 networks:
   common-infra-nginx:
-    external: true
\ No newline at end of file
+    external: true
diff --git a/.gitea/workflows/deploy-dev.yaml b/.gitea/workflows/deploy-dev.yaml
index fe6e8c3..547e4f0 100644
--- a/.gitea/workflows/deploy-dev.yaml
+++ b/.gitea/workflows/deploy-dev.yaml
@@ -41,4 +41,4 @@ jobs:
         env:
           MONGO_PASSWORD_DEV: ${{ secrets.MONGO_PASSWORD_DEV }}
           QUEUES_TOKEN_DEV: ${{ secrets.QUEUES_TOKEN_DEV }}
-        run: docker stack deploy --with-registry-auth -c ./.deploy/deploy-dev.yaml infra
\ No newline at end of file
+        run: docker stack deploy --with-registry-auth -c ./.deploy/deploy-dev.yaml infra
diff --git a/Dockerfile b/Dockerfile
index 28c0755..224e023 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.10
+FROM python:3.12
 
 RUN mkdir /usr/src/app
 WORKDIR /usr/src/app
diff --git a/app/middlewares/__init__.py b/app/middlewares/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/app/middlewares/check_token.py b/app/middlewares/check_token.py
deleted file mode 100644
index 3c017b6..0000000
--- a/app/middlewares/check_token.py
+++ /dev/null
@@ -1,13 +0,0 @@
-import fastapi
-import os
-
-
-QUEUES_TOKEN = os.getenv('QUEUES_TOKEN')
-
-class CheckToken:
-    async def __call__(self, request: fastapi.Request, call_next):
-        if QUEUES_TOKEN:
-            token = request.headers.get('X-Queues-Token')
-            if not token or token != QUEUES_TOKEN:
-                raise fastapi.HTTPException(403)
-        return await call_next(request)
diff --git a/main.py b/main.py
index 3e902cf..8c17be6 100644
--- a/main.py
+++ b/main.py
@@ -1,7 +1,6 @@
 import fastapi
 import uvicorn
-
-from app.middlewares import check_token
+import os
 
 from app.routers import take
 from app.routers import put
@@ -9,10 +8,22 @@ from app.routers import finish
 
 from app.storage import mongo
 
+from fastapi import responses
+
+
+QUEUES_TOKEN = os.getenv('QUEUES_TOKEN')
 
 app = fastapi.FastAPI()
 
-app.add_middleware(check_token.CheckToken)
+
+@app.middleware('http')
+async def check_token(request: fastapi.Request, call_next):
+    if QUEUES_TOKEN:
+        token = request.headers.get('X-Queues-Token')
+        if not token or token != QUEUES_TOKEN:
+            return responses.JSONResponse(status_code=403, content={'message': 'token is not provided or incorrect'})
+    return await call_next(request)
+
 
 app.include_router(take.router)
 app.include_router(put.router)