diff --git a/.pylintrc b/.pylintrc
index 75f38fc..068101b 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -1,2 +1,5 @@
 [MAIN]
 load-plugins=pylint.extensions.docparams
+
+[MESSAGES CONTROL]
+disable=too-many-arguments
diff --git a/phone_sensors/api.py b/phone_sensors/api.py
index c7606cb..fa0bf57 100644
--- a/phone_sensors/api.py
+++ b/phone_sensors/api.py
@@ -69,8 +69,6 @@ async def upload(
     file_path = Path(tempfile.gettempdir()) / file_name
     with open(file_path, "wb") as file:
         file.write(audio_data)
-    audio = AudioSegment.from_wav(file_path)
-    audio.export(file_path, format="wav")
+    AudioSegment.from_wav(file_path).export(file_path, format="wav")
 
-    job_id = submit_analyze_audio_job(redis_conn, file_path, status)
-    return job_id
+    return submit_analyze_audio_job(redis_conn, file_path, status)
diff --git a/phone_sensors/cli.py b/phone_sensors/cli.py
index 8f1594e..1f70ab6 100644
--- a/phone_sensors/cli.py
+++ b/phone_sensors/cli.py
@@ -13,6 +13,7 @@
 
 
 def main():
+    """CLI entry point."""
     settings = get_settings()
     rich.print(settings)
     engine = create_engine(str(settings.postgres_dsn))
diff --git a/phone_sensors/utils.py b/phone_sensors/utils.py
index dda57b5..63d0b5a 100644
--- a/phone_sensors/utils.py
+++ b/phone_sensors/utils.py
@@ -1,3 +1,5 @@
+"""Utility functions"""
+
 from geoalchemy2 import WKBElement
 from geoalchemy2.shape import from_shape, to_shape
 from shapely import Point