diff --git a/src/loader.py b/src/loader.py
index d3e59b0..22f555d 100644
--- a/src/loader.py
+++ b/src/loader.py
@@ -33,7 +33,7 @@ class EtlLoader:
             async with session.post(
                     url=f"{self.etl.protocol}://{self.etl.host}:{self.etl.port}",
                     data=data_dict,
-                    timeout=aiohttp.ClientTimeout(total=15)
+                    timeout=aiohttp.ClientTimeout(total=etl_config.max_wait_size)
             ) as response:
                 pass
             state.set_state(f'iblock_{iblock_id}', abitr.ID)