diff --git a/pipelines/datasets/br_rf_cno/flows.py b/pipelines/datasets/br_rf_cno/flows.py
index eb30502ec..a961772a8 100644
--- a/pipelines/datasets/br_rf_cno/flows.py
+++ b/pipelines/datasets/br_rf_cno/flows.py
@@ -96,8 +96,7 @@
             table_id=table_ids,
             dump_mode=unmapped("append"),
             source_format=unmapped('parquet'),
-            wait=unmapped(files),
-            upstream_tasks=[files]
+            upstream_tasks=[unmapped(files)] # https://github.com/PrefectHQ/prefect/issues/2752
         )
 
         dbt_parameters = create_parameters_list(
@@ -108,7 +107,7 @@
              download_csv_file = True,
              dbt_command = 'run',
              disable_elementary = True,
-             upstream_tasks=[wait_upload_table]
+             upstream_tasks=[unmapped(wait_upload_table)]
         )
 
         with case(materialize_after_dump, True):
@@ -120,7 +119,7 @@
                     parameters=dbt_parameters,
                     labels=unmapped(current_flow_labels),
                     run_name=f"Materialize {dataset_id}.{table_ids}",
-                    upstream_tasks=[dbt_parameters]
+                    upstream_tasks=[unmapped(dbt_parameters)]
                 )
 
                 wait_for_materialization = wait_for_flow_run.map(
@@ -128,7 +127,7 @@
                     stream_states=unmapped(True),
                     stream_logs=unmapped(True),
                     raise_final_state=unmapped(True),
-                    upstream_tasks=[materialization_flow]
+                    upstream_tasks=[unmapped(materialization_flow)]
                 )
                 wait_for_materialization.max_retries = (
                     dump_db_constants.WAIT_FOR_MATERIALIZATION_RETRY_ATTEMPTS.value
@@ -144,10 +143,9 @@
                         date_column_name=unmapped({"date": "data_extracao"}),
                         date_format=unmapped("%Y-%m-%d"),
                         coverage_type=unmapped("all_bdpro"),
-                        #time_delta=unmapped({"months": 6}),
                         prefect_mode=unmapped(materialization_mode),
                         bq_project=unmapped("basedosdados"),
-                        upstream_tasks=[wait_for_materialization],
+                        upstream_tasks=[unmapped(wait_for_materialization)],
                     )
 
 
diff --git a/pipelines/datasets/br_rf_cno/tasks.py b/pipelines/datasets/br_rf_cno/tasks.py
index 3aeefb3e7..7f362ac66 100644
--- a/pipelines/datasets/br_rf_cno/tasks.py
+++ b/pipelines/datasets/br_rf_cno/tasks.py
@@ -2,7 +2,8 @@
 """
 Tasks for br_rf_cno
 """
-
+from datetime import datetime, timedelta
+from pipelines.constants import constants
 import os
 from bs4 import BeautifulSoup
 from datetime import datetime
@@ -106,7 +107,10 @@ def wrangling(input_dir: str, output_dir: str, partition_date: str) -> None:
     log('----- Wrangling completed')
 
 
-@task
+@task(
+    max_retries=5,
+    retry_delay=timedelta(seconds=constants.TASK_RETRY_DELAY.value),
+)
 def crawl_cno(root: str, url: str) -> None:
     """
     Downloads and unpacks a ZIP file from the given URL.