diff --git a/tests/integration/helpers/external_sources.py b/tests/integration/helpers/external_sources.py
index e31395ca8f2..6c6435e0d78 100644
--- a/tests/integration/helpers/external_sources.py
+++ b/tests/integration/helpers/external_sources.py
@@ -238,10 +238,12 @@ class SourceMongo(ExternalSource):
 
         self.db = self.connection["test"]
         user_info = self.db.command("usersInfo", self.user)
-        if user_info['users']:
+        if user_info["users"]:
             self.db.command("updateUser", self.user, pwd=self.password)
         else:
-            self.db.command("createUser", self.user, pwd=self.password, roles=["readWrite"])
+            self.db.command(
+                "createUser", self.user, pwd=self.password, roles=["readWrite"]
+            )
         self.prepared = True
 
     def load_data(self, data, table_name):