diff --git a/capgen/transcriber/transcriber.py b/capgen/transcriber/transcriber.py
index b4b7d91..6e0b4cd 100644
--- a/capgen/transcriber/transcriber.py
+++ b/capgen/transcriber/transcriber.py
@@ -53,7 +53,7 @@ def __init__(
         except ValueError:
             self.model = WhisperModel(**model_parameters)
 
-    async def transcribe(self, file: str | BinaryIO, caption_format: str) -> str | None:
+    def transcribe(self, file: str | BinaryIO, caption_format: str) -> str | None:
         """
         Summary
         -------
diff --git a/server/features/transcriber.py b/server/features/transcriber.py
index 87d4bb4..9076f50 100644
--- a/server/features/transcriber.py
+++ b/server/features/transcriber.py
@@ -43,4 +43,4 @@ async def transcribe(cls, file: str | BinaryIO, transcription_type: Literal['srt
         -------
         transcription (str | None) : the transcribed text in the chosen caption format
         """
-        return await cls.transcriber.transcribe(file, transcription_type)
+        return cls.transcriber.transcribe(file, transcription_type)