diff --git a/bilix/__version__.py b/bilix/__version__.py
index c8b1d790..3321197c 100644
--- a/bilix/__version__.py
+++ b/bilix/__version__.py
@@ -2,7 +2,7 @@
 bilix inspired by w
 """
 
-__version__ = "0.12.2"
+__version__ = "0.13.1"
 __title__ = "bilix"
 __url__ = "https://github.com/HFrost0/bilix"
 __author__ = "HFrost0"
diff --git a/bilix/download/base_downloader_m3u8.py b/bilix/download/base_downloader_m3u8.py
index ebcae019..ca8e262b 100644
--- a/bilix/download/base_downloader_m3u8.py
+++ b/bilix/download/base_downloader_m3u8.py
@@ -150,5 +150,5 @@ def handle(kwargs):
                                speed_limit=speed_limit)
         cors = []
         for i, key in enumerate(kwargs['keys']):
-            cors.append(d.get_m3u8_video(key, f"{i}.ts"))
+            cors.append(d.get_m3u8_video(key, str(i)))
         return d, asyncio.gather(*cors)
diff --git a/bilix/download/downloader_cctv.py b/bilix/download/downloader_cctv.py
index 5cfeb623..6b27360a 100644
--- a/bilix/download/downloader_cctv.py
+++ b/bilix/download/downloader_cctv.py
@@ -24,7 +24,7 @@ async def get_series(self, url: str, quality=0, hierarchy=True):
                 hierarchy = self._make_hierarchy_dir(hierarchy, title)
             await asyncio.gather(*[self.get_video(pid, quality, hierarchy if hierarchy else '') for pid in pids])
 
-    async def get_video(self, url_or_pid: str, quality=0, hierarchy=''):
+    async def get_video(self, url_or_pid: str, quality=0, hierarchy: str = ''):
         if url_or_pid.startswith('http'):
             pid, _, _ = await api.get_id(self.client, url_or_pid)
         else:
diff --git a/setup.py b/setup.py
index c7ea8134..260d20f5 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@ def get_packages(package):
         "console_scripts": "bilix=bilix.__main__:main",
     },
     install_requires=[
-        "httpx[http2]>=0.22.0",
+        "httpx[http2]>=0.23.3",
         'anyio',
         'aiofiles>=0.8.0',
         'rich',