diff --git a/planetstack/model_policies/model_policy_Site.py b/planetstack/model_policies/model_policy_Site.py
index a49c868..7d96264 100644
--- a/planetstack/model_policies/model_policy_Site.py
+++ b/planetstack/model_policies/model_policy_Site.py
@@ -1,6 +1,6 @@
-from core.models import *
 
 def handle(site):
+    from core.models import Controller, ControllerSite 
     # make sure site has a ControllerSite record for each controller
     ctrl_sites = ControllerSite.objects.filter(site=site)
     existing_controllers = [cs.controller for cs in ctrl_sites]