diff --git a/financial_reports/transactions.py b/financial_reports/transactions.py
index 39b3c8748..d5ca5726c 100644
--- a/financial_reports/transactions.py
+++ b/financial_reports/transactions.py
@@ -1,12 +1,18 @@
 import os
+
 import pandas as pd
 
+
 def get_transactions_in_date_range(start_date, end_date):
     # Load the transactions CSV file from the transactions directory
-    transactions_file = os.path.join(os.path.dirname(__file__), '..', 'transactions', 'transactions.csv')
+    transactions_file = os.path.join(
+        os.path.dirname(__file__), "..", "transactions", "transactions.csv"
+    )
     transactions_df = pd.read_csv(transactions_file)
 
     # Filter transactions by date range
-    transactions_df = transactions_df[(transactions_df['date'] >= start_date) & (transactions_df['date'] <= end_date)]
+    transactions_df = transactions_df[
+        (transactions_df["date"] >= start_date) & (transactions_df["date"] <= end_date)
+    ]
 
     return transactions_df