diff --git a/objective.py b/objective.py
index f0315a5..a7c08e3 100644
--- a/objective.py
+++ b/objective.py
@@ -63,6 +63,7 @@ def check_convergence(self, objective_list):
 
         return False, min(1.0, target / value)
 
+
 with safe_import_context() as import_ctx:
     import numpy as np
     from numpy.linalg import norm