diff --git a/blockchain_integration/pi_network/reputation/reputation_system.py b/blockchain_integration/pi_network/reputation/reputation_system.py
index 2247938da..b50407a4d 100644
--- a/blockchain_integration/pi_network/reputation/reputation_system.py
+++ b/blockchain_integration/pi_network/reputation/reputation_system.py
@@ -1,5 +1,6 @@
 import pandas as pd
 
+
 class ReputationSystem:
     def __init__(self, user_data):
         self.user_data = pd.DataFrame(user_data)