diff --git a/backend/app/api/api_v1/endpoints/reports.py b/backend/app/api/api_v1/endpoints/reports.py
index 70f5cf5..419c6c1 100644
--- a/backend/app/api/api_v1/endpoints/reports.py
+++ b/backend/app/api/api_v1/endpoints/reports.py
@@ -66,9 +66,7 @@ def _validate_upload_file(file: UploadFile, file_content: bytes) -> None:
     """
     # Security: Validate filename is provided
     if not file.filename:
-        raise HTTPException(
-            status_code=status.HTTP_400_BAD_REQUEST, detail="Filename is required"
-        )
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Filename is required")
 
     # Security: Validate file extension
     file_ext = "." + file.filename.rsplit(".", 1)[-1].lower() if "." in file.filename else ""
@@ -97,13 +95,9 @@ def _handle_upload_value_error(filename: str, error_message: str) -> None:
             status_code=status.HTTP_413_REQUEST_ENTITY_TOO_LARGE, detail="File too large"
         )
     elif "zip bomb" in error_message.lower():
-        raise HTTPException(
-            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid archive file"
-        )
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid archive file")
     else:
-        raise HTTPException(
-            status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid report format"
-        )
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid report format")
 
 
 class UploadResponse(BaseModel):
diff --git a/backend/app/services/dmarc_parser.py b/backend/app/services/dmarc_parser.py
index 73ba7b9..c5944f2 100644
--- a/backend/app/services/dmarc_parser.py
+++ b/backend/app/services/dmarc_parser.py
@@ -237,9 +237,7 @@ class DMARCParser:
             # Log parse results for debugging
             total_count = report["summary"]["total_count"]
             logger.info(f"Parsed DMARC report for domain: {report.get('domain')}")
-            logger.info(
-                f"Found {len(records)} record entries with {total_count} total messages"
-            )
+            logger.info(f"Found {len(records)} record entries with {total_count} total messages")
             logger.info(
                 f"Messages passed: {report['summary']['passed_count']}, "
                 f"failed: {report['summary']['failed_count']}"