diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ed86d7b..1515eda 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,7 +1,7 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.6.7
+    rev: v0.6.9
     hooks:
       # Run the linter.
       - id: ruff
diff --git a/README.md b/README.md
index 7f44db0..e67c563 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ It is possible to execute tests of [Flask] microservice created with [pytest] fr
 ~/app# make test
 ...
 ============================= test session starts ==============================
-platform linux -- Python 3.12.5, pytest-8.3.2, pluggy-1.5.0
+platform linux -- Python 3.12.7, pytest-8.3.3, pluggy-1.5.0
 rootdir: /app/tests
 collected 2 items
 
diff --git a/app/app/__init__.py b/app/app/__init__.py
index 7c3f050..343e427 100644
--- a/app/app/__init__.py
+++ b/app/app/__init__.py
@@ -9,6 +9,7 @@
 from config import config
 from flask import Flask, render_template
 
+from .api import api
 from .model import init_model
 
 
@@ -21,8 +22,6 @@ def create_app(config_name="default"):
     with app.app_context():
         app.config["model"] = init_model()
 
-    from .api import api
-
     app.register_blueprint(api, url_prefix="/api")
 
     @app.route("/dlflask", methods=["GET"])
diff --git a/requirements.txt b/requirements.txt
index 600c918..5cb011b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,10 +2,10 @@ Flask==3.0.3
 gunicorn==23.0.0
 numpy==1.26.4
 Pillow==10.4.0
-pre-commit==3.8.0
+pre-commit==4.0.0
 pur==7.3.2
 pytest==8.3.3
 requests==2.32.3
-ruff==0.6.7
+ruff==0.6.9
 scikit-image==0.24.0
 tensorflow==2.17.0