diff --git a/docker-compose.yml b/docker-compose.yml
index debedd8..1bb95cf 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -21,7 +21,7 @@ services:
       TZ: "Europe/Prague"
       API_URL: "http://localhost:8000"
       APP_ENV: "development"
-      ALLOW_CORS_ORIGINS: "http://localhost:9000 http://localhost:9001"
+      ALLOW_CORS_ORIGINS: "http://localhost:9000 http://localhost:9001 http://localhost:3000"
       SENTRY_DSN: "https://184d1d6bd39f4fbb94804ae84e9afdd5@o472821.ingest.sentry.io/5506983"
 
 
diff --git a/src/graphql_schema/dataloaders/base.py b/src/graphql_schema/dataloaders/base.py
index 7360e1f..a44c6e2 100644
--- a/src/graphql_schema/dataloaders/base.py
+++ b/src/graphql_schema/dataloaders/base.py
@@ -28,7 +28,7 @@ class SingleModelByIdDataloader(BaseDataloader):
         async with async_session() as session:
             query = (
                 self.query_builder.get_simple_query(extra_select=[self.relationship_column], include_deleted=True)
-                .filter(self.relationship_column.in_(ids))
+                .filter(self.relationship_column.in_(set(ids)))
                 .filter(*self.filters)
             )
 
@@ -63,7 +63,7 @@ class MultiModelsDataloader(BaseDataloader):
                     extra_select=[self.relationship_column],
                     order_by=self.order_by
                 )
-                .filter(self.relationship_column.in_(ids))
+                .filter(self.relationship_column.in_(set(ids)))
                 .filter(*self.filters)
             )