diff --git a/sso/models.py b/sso/models.py
index 22aaa77..388bad4 100644
--- a/sso/models.py
+++ b/sso/models.py
@@ -117,7 +117,15 @@ class SSOUser(models.Model):
         if created:   
             profile, created = SSOUser.objects.get_or_create(user=instance) 
 
+    @staticmethod
+    def update_service_groups(sender, instance, created, **kwargs):
+        if not created:
+            for acc in instance.serviceaccount_set.all():
+                cls = acc.service.api_class
+                cls.update_groups(acc.service_uid, instance.groups.all())
+
 signals.post_save.connect(SSOUser.create_user_profile, sender=User)
+signals.post_save.connect(SSOUser.update_service_groups, sender=User)
 
 class Service(models.Model):
     """