diff --git a/pyproject.toml b/pyproject.toml
index 8131e0a..cfe89eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "yandex-music-downloader"
-version = "3.0.0b0"
+version = "3.0.0b1"
 description = "Загрузчик музыки с сервиса Яндекс.Музыка"
 requires-python = ">=3.9"
 readme = "README.md"
diff --git a/ymd/cli.py b/ymd/cli.py
index 9b54dea..5204eb8 100644
--- a/ymd/cli.py
+++ b/ymd/cli.py
@@ -7,7 +7,7 @@ import time
 import typing
 from collections.abc import Generator, Iterable
 from pathlib import Path
-from typing import Optional
+from typing import Optional, Union
 from urllib.parse import urlparse
 
 from yandex_music import Album, Client, Playlist, Track
@@ -151,7 +151,7 @@ def main():
     client = Client(args.token).init()
     result_tracks: Iterable[Track] = []
 
-    def album_tracks_gen(album_ids: Iterable[int | str]) -> Generator[Track]:
+    def album_tracks_gen(album_ids: Iterable[Union[int, str]]) -> Generator[Track]:
         for album_id in album_ids:
             if full_album := client.albums_with_tracks(album_id):
                 if volumes := full_album.volumes:
diff --git a/ymd/core.py b/ymd/core.py
index 5e148ad..9cc384a 100644
--- a/ymd/core.py
+++ b/ymd/core.py
@@ -15,7 +15,7 @@ DEFAULT_PATH_PATTERN = Path("#album-artist", "#album", "#number - #title")
 DEFAULT_COVER_RESOLUTION = 400
 
 
-def full_title(obj: YandexMusicObject) -> str | None:
+def full_title(obj: YandexMusicObject) -> Optional[str]:
     result = obj["title"]
     if result is None:
         return