diff --git a/app/utils/helpers.py b/app/utils/helpers.py
index c834251..a071f32 100644
--- a/app/utils/helpers.py
+++ b/app/utils/helpers.py
@@ -1,14 +1,19 @@
 # Helper utilities
 import os
 
+
 def send_file(file, as_attachment=True):
     if as_attachment:
         return send_file_from_directory(file, as_attachment=True)
     return send_file_from_memory(file)
 
+
 def send_file_from_directory(file, as_attachment=True):
-    file_path = os.path.join(current_app.config['UPLOAD_FOLDER'], file)
-    return send_from_directory(current_app.config['UPLOAD_FOLDER'], file, as_attachment=as_attachment)
+    file_path = os.path.join(current_app.config["UPLOAD_FOLDER"], file)
+    return send_from_directory(
+        current_app.config["UPLOAD_FOLDER"], file, as_attachment=as_attachment
+    )
+
 
 def send_file_from_memory(file):
-    return send_file(file, mimetype='application/octet-stream', as_attachment=True)
+    return send_file(file, mimetype="application/octet-stream", as_attachment=True)