diff --git a/blockchain_integration/pi_network/api/external_api.py b/blockchain_integration/pi_network/api/external_api.py
index 1ce932ec8..60822033e 100644
--- a/blockchain_integration/pi_network/api/external_api.py
+++ b/blockchain_integration/pi_network/api/external_api.py
@@ -1,5 +1,6 @@
 import requests
 
+
 class ExternalAPI:
     def __init__(self, api_url):
         self.api_url = api_url