diff --git a/blockchain_integration/pi_network/payment_gateways/square.py b/blockchain_integration/pi_network/payment_gateways/square.py
index 6c848f416..2a6dade13 100644
--- a/blockchain_integration/pi_network/payment_gateways/square.py
+++ b/blockchain_integration/pi_network/payment_gateways/square.py
@@ -1,5 +1,6 @@
 import squareconnect
 
+
 class SquarePaymentGateway:
     def __init__(self, access_token):
         self.access_token = access_token
@@ -8,12 +9,9 @@ def __init__(self, access_token):
     def create_payment(self, amount, currency):
         transaction_api = squareconnect.TransactionsApi()
         request_body = {
-            'amount_money': {
-                'amount': int(amount * 100),
-                'currency_code': currency
-            },
-            'payment_method_types': ['CARD'],
-            'idempotency_key': squareconnect.util.random_string(32)
+            "amount_money": {"amount": int(amount * 100), "currency_code": currency},
+            "payment_method_types": ["CARD"],
+            "idempotency_key": squareconnect.util.random_string(32),
         }
         response = transaction_api.create_transaction(request_body)
         return response