diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 8946ac7..b72ef31 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -18,12 +18,12 @@ jobs:
           docker run -d -p 5432:5432 -e POSTGRES_HOST_AUTH_METHOD=trust --name db-test postgres:15-alpine
       - uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.11'
       - name: Install dependencies
         run: |
           python -m ensurepip
           python -m pip install --upgrade pip
-          pip install -r requirements.txt -r requirements.dev.txt
+          pip install --upgrade -r requirements.txt -r requirements.dev.txt
       - name: Migrate DB
         run: |
           DB_DSN=postgresql://postgres@localhost:5432/postgres alembic upgrade head
diff --git a/migrations/env.py b/migrations/env.py
index f143453..316daad 100644
--- a/migrations/env.py
+++ b/migrations/env.py
@@ -50,7 +50,7 @@ def run_migrations_online():
 
     """
     configuration = config.get_section(config.config_ini_section)
-    configuration['sqlalchemy.url'] = settings.DB_DSN
+    configuration['sqlalchemy.url'] = str(settings.DB_DSN)
     connectable = engine_from_config(
         configuration,
         prefix="sqlalchemy.",
diff --git a/requirements.txt b/requirements.txt
index e72fced..d9afd71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ SQLAlchemy
 gunicorn
 logging-profcomff
 auth-lib-profcomff[fastapi]
+pydantic_settings
diff --git a/services_backend/__main__.py b/services_backend/__main__.py
index 2640c6a..5166cbe 100644
--- a/services_backend/__main__.py
+++ b/services_backend/__main__.py
@@ -1,6 +1,6 @@
 import uvicorn
 
-from .routes.base import app
+from services_backend.routes.base import app
 
 
 if __name__ == '__main__':
diff --git a/services_backend/routes/base.py b/services_backend/routes/base.py
index 4435393..01a1eb4 100644
--- a/services_backend/routes/base.py
+++ b/services_backend/routes/base.py
@@ -26,7 +26,7 @@
 
 app.add_middleware(
     DBSessionMiddleware,
-    db_url=settings.DB_DSN,
+    db_url=str(settings.DB_DSN),
     engine_args={"pool_pre_ping": True, "isolation_level": "AUTOCOMMIT"},
 )
 
diff --git a/services_backend/routes/button.py b/services_backend/routes/button.py
index 8faa3b1..f30a9d3 100644
--- a/services_backend/routes/button.py
+++ b/services_backend/routes/button.py
@@ -23,12 +23,14 @@ class ButtonCreate(Base):
 
 
 class ButtonUpdate(Base):
-    category_id: int | None = Field(description='Айди категории')
-    icon: str | None = Field(description='Иконка кнопки')
-    name: str | None = Field(description='Название кнопки')
-    order: int | None = Field(description='Порядок, в котором отображаются кнопки')
-    link: str | None = Field(description='Ссылка, на которую перенаправляет кнопка')
-    type: Type | None = Field(description='Тип открываемой ссылки (Ссылка приложения/Браузер в приложении/Браузер')
+    category_id: int | None = Field(description='Айди категории', default=None)
+    icon: str | None = Field(description='Иконка кнопки', default=None)
+    name: str | None = Field(description='Название кнопки', default=None)
+    order: int | None = Field(description='Порядок, в котором отображаются кнопки', default=None)
+    link: str | None = Field(description='Ссылка, на которую перенаправляет кнопка', default=None)
+    type: Type | None = Field(
+        description='Тип открываемой ссылки (Ссылка приложения/Браузер в приложении/Браузер', default=None
+    )
 
 
 class ButtonGet(Base):
@@ -41,7 +43,7 @@ class ButtonGet(Base):
 
 
 class ButtonsGet(Base):
-    buttons: list[ButtonGet] | None
+    buttons: list[ButtonGet] | None = None
 
 
 # endregion
diff --git a/services_backend/routes/category.py b/services_backend/routes/category.py
index d303c20..2a3ac4d 100644
--- a/services_backend/routes/category.py
+++ b/services_backend/routes/category.py
@@ -29,23 +29,23 @@ class ButtonGet(Base):
 class CategoryCreate(Base):
     type: str = Field(description='Тип отображения категории')
     name: str = Field(description='Имя категории')
-    scopes: set[str] | None = Field(description='Каким пользователям будет видна категория')
+    scopes: set[str] | None = Field(description='Каким пользователям будет видна категория', default=None)
 
 
 class CategoryUpdate(Base):
-    order: int | None = Field(description='На какую позицию перенести категорию')
-    type: str | None = Field(description='Тип отображения категории')
-    name: str | None = Field(description='Имя категории')
-    scopes: set[str] | None = Field(description='Каким пользователям будет видна категория')
+    order: int | None = Field(description='На какую позицию перенести категорию', default=None)
+    type: str | None = Field(description='Тип отображения категории', default=None)
+    name: str | None = Field(description='Имя категории', default=None)
+    scopes: set[str] | None = Field(description='Каким пользователям будет видна категория', default=None)
 
 
 class CategoryGet(Base):
     id: int
     order: int
-    type: str | None
-    name: str | None
-    buttons: list[ButtonGet] | None
-    scopes: list[str] | None
+    type: str | None = None
+    name: str | None = None
+    buttons: list[ButtonGet] | None = None
+    scopes: list[str] | None = None
 
 
 # endregion
diff --git a/services_backend/schemas.py b/services_backend/schemas.py
index d96d4d5..179ff44 100644
--- a/services_backend/schemas.py
+++ b/services_backend/schemas.py
@@ -1,4 +1,4 @@
-from pydantic import BaseModel
+from pydantic import BaseModel, ConfigDict
 
 
 class Base(BaseModel):
@@ -8,5 +8,4 @@ def __repr__(self) -> str:
             attrs.append(f"{k}={v}")
         return "{}({})".format(self.__class__.__name__, ', '.join(attrs))
 
-    class Config:
-        orm_mode = True
+    model_config = ConfigDict(from_attributes=True, extra="ignore")
diff --git a/services_backend/settings.py b/services_backend/settings.py
index a602307..0350423 100644
--- a/services_backend/settings.py
+++ b/services_backend/settings.py
@@ -1,7 +1,8 @@
 import os
 from functools import lru_cache
 
-from pydantic import BaseSettings, PostgresDsn
+from pydantic import ConfigDict, PostgresDsn
+from pydantic_settings import BaseSettings
 
 
 class Settings(BaseSettings):
@@ -14,12 +15,7 @@ class Settings(BaseSettings):
     CORS_ALLOW_CREDENTIALS: bool = True
     CORS_ALLOW_METHODS: list[str] = ['*']
     CORS_ALLOW_HEADERS: list[str] = ['*']
-
-    class Config:
-        """Pydantic BaseSettings config"""
-
-        case_sensitive = True
-        env_file = ".env"
+    model_config = ConfigDict(case_sensitive=True, env_file=".env", extra="ignore")
 
 
 @lru_cache
diff --git a/tests/conftest.py b/tests/conftest.py
index 5e1b17c..ca4b17b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -27,7 +27,7 @@ def client(mocker: MockerFixture):
 @pytest.fixture(scope='session')
 def dbsession() -> Session:
     settings = get_settings()
-    engine = create_engine(settings.DB_DSN, execution_options={"isolation_level": "AUTOCOMMIT"})
+    engine = create_engine(str(settings.DB_DSN), execution_options={"isolation_level": "AUTOCOMMIT"})
     TestingSessionLocal = sessionmaker(bind=engine)
     Base.metadata.drop_all(bind=engine)
     Base.metadata.create_all(bind=engine)