diff --git a/hub/persistence/repositories/city_object.py b/hub/persistence/repositories/city_object.py
index 5c805d15..3fd5c62c 100644
--- a/hub/persistence/repositories/city_object.py
+++ b/hub/persistence/repositories/city_object.py
@@ -142,12 +142,12 @@ class CityObject(Repository):
     try:
       # search by name first
       with Session(self.engine) as session:
-        city_object = session.execute(select(Model).where(Model.name == name, Model.city_id in city_ids)).first()
+        city_object = session.execute(select(Model).where(Model.name == name, Model.city_id.in_(tuple(city_ids)))).first()
         if city_object is not None:
           return city_object[0]
         # name not found, so search by alias instead
         city_objects = session.execute(
-          select(Model).where(Model.aliases.contains(name), Model.city_id in city_ids)
+          select(Model).where(Model.aliases.contains(name), Model.city_id.in_(tuple(city_ids)))
         ).all()
       for city_object in city_objects:
         aliases = city_object[0].aliases.replace('{', '').replace('}', '').split(',')