diff --git a/laborious/worker/worker.py b/laborious/worker/worker.py
index fcc396b..d5f3c9a 100644
--- a/laborious/worker/worker.py
+++ b/laborious/worker/worker.py
@@ -216,6 +216,7 @@ async def main():
                 activities.export_data_to_postgres,
             ],
             logger=logger,
+            runtime='core'
         ),
         prepare_worker(
             temporal_client=temporal_client,
@@ -228,6 +229,7 @@ async def main():
                 activities.export_data_to_postgres,
             ],
             logger=logger,
+            runtime='core'
         ),
         prepare_worker(
             temporal_client=temporal_client,