diff --git a/zyrarbot/storage/adapters/postgres/database.py b/zyrarbot/storage/adapters/postgres/database.py
index 390d4eb..0014453 100644
--- a/zyrarbot/storage/adapters/postgres/database.py
+++ b/zyrarbot/storage/adapters/postgres/database.py
@@ -2,9 +2,10 @@ from __future__ import annotations
 
 import json
 import logging
+from collections.abc import Iterator
 from contextlib import contextmanager
 from pathlib import Path
-from typing import Any, Iterator
+from typing import Any
 
 import psycopg
 
@@ -71,7 +72,11 @@ class PostgresDatabase:
                 for key, entries in history.items():
                     if key.isdigit() and isinstance(entries, list):
                         _import_history(connection, int(key), entries)
-                    elif key == "history" and isinstance(entries, list) and first_guild_id is not None:
+                    elif (
+                        key == "history"
+                        and isinstance(entries, list)
+                        and first_guild_id is not None
+                    ):
                         _import_history(connection, first_guild_id, entries)
 
             for path in (base / "queues").glob("*.json"):
@@ -109,7 +114,12 @@ def _upsert_guild(
             try:
                 value = int(values[field])
             except (TypeError, ValueError):
-                logger.error("Nieprawidłowa wartość %s serwera %s: %r", field, guild_id, values[field])
+                logger.error(
+                    "Nieprawidłowa wartość %s serwera %s: %r",
+                    field,
+                    guild_id,
+                    values[field],
+                )
                 continue
             connection.execute(f"UPDATE guilds SET {field}=%s WHERE id=%s", (value, guild_id))
 
diff --git a/zyrarbot/storage/adapters/postgres/guild_config.py b/zyrarbot/storage/adapters/postgres/guild_config.py
index dd82b50..e7acc15 100644
--- a/zyrarbot/storage/adapters/postgres/guild_config.py
+++ b/zyrarbot/storage/adapters/postgres/guild_config.py
@@ -12,7 +12,9 @@ class PostgresGuildConfig:
 
     def _ensure(self, guild_id: int) -> None:
         with self._database.connect() as connection:
-            connection.execute("INSERT INTO guilds(id) VALUES (%s) ON CONFLICT(id) DO NOTHING", (guild_id,))
+            connection.execute(
+                "INSERT INTO guilds(id) VALUES (%s) ON CONFLICT(id) DO NOTHING", (guild_id,)
+            )
 
     def get_notification_channel_id(self, guild_id: int) -> int | None:
         with self._database.connect() as connection:
@@ -32,10 +34,14 @@ class PostgresGuildConfig:
         if guild_id is None:
             return self._fallback_plays
         with self._database.connect() as connection:
-            row = connection.execute("SELECT default_plays FROM guilds WHERE id=%s", (guild_id,)).fetchone()
+            row = connection.execute(
+                "SELECT default_plays FROM guilds WHERE id=%s", (guild_id,)
+            ).fetchone()
         return int(row[0]) if row and row[0] is not None else self._fallback_plays
 
     def set_default_plays(self, guild_id: int, value: int) -> None:
         self._ensure(guild_id)
         with self._database.connect() as connection:
-            connection.execute("UPDATE guilds SET default_plays=%s WHERE id=%s", (int(value), guild_id))
+            connection.execute(
+                "UPDATE guilds SET default_plays=%s WHERE id=%s", (int(value), guild_id)
+            )