diff --git a/src/core/settings.py b/src/core/settings.py
index 824f89b..19b0cd2 100644
--- a/src/core/settings.py
+++ b/src/core/settings.py
@@ -45,9 +45,11 @@ class RefreshToken(BaseModel):
 class Settings(BaseSettings):
     api: ApiPrefix = ApiPrefix()
     db: DbSettings = DbSettings()
-    access_token: AccessToken  
+    access_token: AccessToken
     refresh_token: RefreshToken
-    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", env_nested_delimiter='__')
+    model_config = SettingsConfigDict(
+        env_file=".env", env_file_encoding="utf-8", env_nested_delimiter="__"
+    )
 
 
 settings = Settings()  # type: ignore
diff --git a/src/migrations/versions/2025_09_21_2016-5821f37941a8_expire_and_fingerprintjs_token.py b/src/migrations/versions/2025_09_21_2016-5821f37941a8_expire_and_fingerprintjs_token.py
index a221cc7..5d43667 100644
--- a/src/migrations/versions/2025_09_21_2016-5821f37941a8_expire_and_fingerprintjs_token.py
+++ b/src/migrations/versions/2025_09_21_2016-5821f37941a8_expire_and_fingerprintjs_token.py
@@ -5,14 +5,15 @@ Revises: b879d3502c37
 Create Date: 2025-09-21 20:16:48.289050
 
 """
+
 from typing import Sequence, Union
 
 import sqlalchemy as sa
 from alembic import op
 
 # revision identifiers, used by Alembic.
-revision: str = '5821f37941a8'
-down_revision: Union[str, None] = 'b879d3502c37'
+revision: str = "5821f37941a8"
+down_revision: Union[str, None] = "b879d3502c37"
 branch_labels: Union[str, Sequence[str], None] = None
 depends_on: Union[str, Sequence[str], None] = None
 
@@ -20,14 +21,25 @@ depends_on: Union[str, Sequence[str], None] = None
 def upgrade() -> None:
     """Upgrade schema."""
     # ### commands auto generated by Alembic - please adjust! ###
-    op.add_column('refresh_tokens', sa.Column('fingerprint', sa.String(length=255), nullable=False))
-    op.add_column('refresh_tokens', sa.Column('expired_at', sa.TIMESTAMP(timezone=True), server_default=sa.text("(datetime('now', '+7 days'))"), nullable=False))
+    op.add_column(
+        "refresh_tokens",
+        sa.Column("fingerprint", sa.String(length=255), nullable=False),
+    )
+    op.add_column(
+        "refresh_tokens",
+        sa.Column(
+            "expired_at",
+            sa.TIMESTAMP(timezone=True),
+            server_default=sa.text("(datetime('now', '+7 days'))"),
+            nullable=False,
+        ),
+    )
     # ### end Alembic commands ###
 
 
 def downgrade() -> None:
     """Downgrade schema."""
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_column('refresh_tokens', 'expired_at')
-    op.drop_column('refresh_tokens', 'fingerprint')
+    op.drop_column("refresh_tokens", "expired_at")
+    op.drop_column("refresh_tokens", "fingerprint")
     # ### end Alembic commands ###
diff --git a/src/models/tokens.py b/src/models/tokens.py
index 0c52fa2..601ad6f 100644
--- a/src/models/tokens.py
+++ b/src/models/tokens.py
@@ -15,5 +15,7 @@ class RefreshTokensORM(Base):
     fingerprint: Mapped[str] = mapped_column(String(255), nullable=False)
     expired_at: Mapped[datetime] = mapped_column(
         TIMESTAMP(timezone=True),
-        server_default=text(f"datetime('now', '+{settings.refresh_token.expire_days} days')"),
+        server_default=text(
+            f"datetime('now', '+{settings.refresh_token.expire_days} days')"
+        ),
     )
diff --git a/src/services/auth.py b/src/services/auth.py
index 572fe39..a4c7705 100644
--- a/src/services/auth.py
+++ b/src/services/auth.py
@@ -23,9 +23,9 @@ class AuthService(BaseService):
         access_token = AuthManager.create_access_token(user_data.model_dump())
         refresh_token = AuthManager.create_refresh_token()
         await self.session.auth.create_one({
-            "token": refresh_token, 
+            "token": refresh_token,
             "user_id": user_data.id,
-            "fingerprint": fingerprint
+            "fingerprint": fingerprint,
         })
         return {
             "access_token": access_token,
@@ -34,28 +34,27 @@ class AuthService(BaseService):
         }
 
     async def login(self, username: str, password: str, fingerprint: str) -> dict:
+        login_exception = HTTPException(
+            status_code=401,
+            detail="Incorrect username or password",
+        )
         result = await self.session.user.get_one_or_none(username=username)
         if result is None:
-            raise HTTPException(
-                status_code=401,
-                detail="Incorrect username or password",
-            )
+            raise login_exception
         user = UserWithHashedPass.model_validate(result)
         token_data = TokenData.model_validate(user.model_dump())
         verify = AuthManager.verify_password(
             plain_password=password, hashed_password=user.hashed_password
         )
         if not verify or user.is_active is False:
-            raise HTTPException(
-                status_code=401,
-                detail="Incorrect username or password",
-            )
+            raise login_exception
         tokens = await self._tokens_create(token_data, fingerprint)
         await self.session.commit()
-        print(tokens)
         return tokens
 
-    async def refresh_tokens(self, refresh_token: str, user_data: TokenData, fingerprint: str) -> dict:
+    async def refresh_tokens(
+        self, refresh_token: str, user_data: TokenData, fingerprint: str
+    ) -> dict:
         token_record = await self.session.auth.get_one_or_none(token=refresh_token)
         if not token_record or token_record.user_id != user_data.id:
             raise HTTPException(status_code=401, detail="Invalid refresh token")
@@ -63,7 +62,7 @@ class AuthService(BaseService):
         await self.session.auth.delete_one(token=refresh_token)
         await self.session.commit()
         return token
-    
+
     async def delete_token(self, token: str) -> None:
         await self.session.auth.delete_one(token=token)
         await self.session.commit()
diff --git a/tests/integration_tests/test_auth_api.py b/tests/integration_tests/test_auth_api.py
index 28d59c8..ac66d89 100644
--- a/tests/integration_tests/test_auth_api.py
+++ b/tests/integration_tests/test_auth_api.py
@@ -1,5 +1,6 @@
-from httpx import AsyncClient
 import pytest
+from httpx import AsyncClient
+
 from src.core.settings import settings
 from src.schemas.users import User