diff --git a/system_monitoring/self_healing.py b/system_monitoring/self_healing.py
index c0cc472de..f88eed8f4 100644
--- a/system_monitoring/self_healing.py
+++ b/system_monitoring/self_healing.py
@@ -1,10 +1,11 @@
 import subprocess
 
+
 class SelfHealing:
     def __init__(self):
         pass
 
     def heal_system(self):
         # Implement automatic healing techniques
-        subprocess.run(['systemctl', 'restart', 'nginx'])
-        subprocess.run(['systemctl', 'restart', 'postgresql'])
+        subprocess.run(["systemctl", "restart", "nginx"])
+        subprocess.run(["systemctl", "restart", "postgresql"])