diff --git a/app/media/service.py b/app/media/service.py
index 70eafc4..fcaaaa9 100644
--- a/app/media/service.py
+++ b/app/media/service.py
@@ -21,14 +21,19 @@ ALLOWED_MIME_TYPES = {
     "video/webm",
     "audio/mpeg",
     "audio/ogg",
+    "audio/webm",
     "audio/wav",
     "application/pdf",
     "application/zip",
     "text/plain",
 }
 
+def _normalize_mime(file_type: str) -> str:
+    return file_type.split(";", maxsplit=1)[0].strip().lower()
+
+
 def _extension_from_mime(file_type: str) -> str:
-    ext = mimetypes.guess_extension(file_type)
+    ext = mimetypes.guess_extension(_normalize_mime(file_type))
     if not ext:
         return ".bin"
     if ext == ".jpe":
@@ -50,7 +55,8 @@ def _allowed_file_url_prefixes() -> tuple[str, ...]:
 
 
 def _validate_media(file_type: str, file_size: int) -> None:
-    if file_type not in ALLOWED_MIME_TYPES:
+    normalized_file_type = _normalize_mime(file_type)
+    if normalized_file_type not in ALLOWED_MIME_TYPES:
         raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail="Unsupported file type")
     if file_size > settings.max_upload_size_bytes:
         raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail="File size exceeds limit")