diff --git a/backend/services/ytdlp.py b/backend/services/ytdlp.py
index 6447981..5a16e53 100644
--- a/backend/services/ytdlp.py
+++ b/backend/services/ytdlp.py
@@ -449,15 +449,15 @@ def fetch_dislike_count(youtube_video_id: str) -> int | None:
 
 
 QUALITY_FORMATS = {
-    "best":  "bestvideo[ext=mp4][vcodec^=avc1]+bestaudio[ext=m4a]/bestvideo[ext=mp4]+bestaudio[ext=m4a]/22/18/bestvideo+bestaudio/best",
-    "2160p": "bestvideo[ext=mp4][height<=2160]+bestaudio[ext=m4a]/bestvideo[height<=2160]+bestaudio/best[height<=2160]",
-    "1440p": "bestvideo[ext=mp4][height<=1440]+bestaudio[ext=m4a]/bestvideo[height<=1440]+bestaudio/best[height<=1440]",
-    "1080p": "bestvideo[ext=mp4][vcodec^=avc1][height<=1080]+bestaudio[ext=m4a]/bestvideo[ext=mp4][height<=1080]+bestaudio[ext=m4a]/137+140/22/best[height<=1080]",
-    "720p":  "bestvideo[ext=mp4][vcodec^=avc1][height<=720]+bestaudio[ext=m4a]/bestvideo[ext=mp4][height<=720]+bestaudio[ext=m4a]/22/best[height<=720]",
-    "480p":  "bestvideo[ext=mp4][vcodec^=avc1][height<=480]+bestaudio[ext=m4a]/bestvideo[ext=mp4][height<=480]+bestaudio[ext=m4a]/18/best[height<=480]",
-    "360p":  "bestvideo[ext=mp4][height<=360]+bestaudio[ext=m4a]/18/best[height<=360]",
-    "240p":  "bestvideo[ext=mp4][height<=240]+bestaudio[ext=m4a]/best[height<=240]",
-    "144p":  "bestvideo[ext=mp4][height<=144]+bestaudio[ext=m4a]/best[height<=144]",
+    "best":  "bestvideo+bestaudio/best",
+    "2160p": "bestvideo[height<=2160]+bestaudio/best[height<=2160]",
+    "1440p": "bestvideo[height<=1440]+bestaudio/best[height<=1440]",
+    "1080p": "bestvideo[height<=1080]+bestaudio/best[height<=1080]",
+    "720p":  "bestvideo[height<=720]+bestaudio/best[height<=720]",
+    "480p":  "bestvideo[height<=480]+bestaudio/best[height<=480]",
+    "360p":  "bestvideo[height<=360]+bestaudio/best[height<=360]",
+    "240p":  "bestvideo[height<=240]+bestaudio/best[height<=240]",
+    "144p":  "bestvideo[height<=144]+bestaudio/best[height<=144]",
 }