diff --git a/av1_opus_encoder.py b/av1_opus_encoder.py
index 4fdc5cb..c4ba52f 100644
--- a/av1_opus_encoder.py
+++ b/av1_opus_encoder.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 import os
+import argparse
 import sys
 import subprocess
 import shutil
@@ -12,7 +13,7 @@ from pathlib import Path
 from typing import List, Optional, Dict, Any, Union
 
 REQUIRED_TOOLS = [
-    "ffmpeg", "ffprobe", "mkvmerge", "mkvpropedit",
+    "ffmpeg", "ffprobe", "mkvmerge",
     "opusenc", "mediainfo", "av1an", "HandBrakeCLI", "ffmsindex" # Added HandBrakeCLI and ffmsindex
 ]
 DIR_COMPLETED = Path("completed")
@@ -796,5 +797,4 @@ def main() -> None:
         process_file(file_path, args.no_downmix, args.autocrop)
 
 if __name__ == "__main__":
-    import argparse
     main()