diff --git a/clickhouse_dag.py b/clickhouse_dag.py
index 871cc94..3c813c9 100644
--- a/clickhouse_dag.py
+++ b/clickhouse_dag.py
@@ -1,18 +1,21 @@
 from airflow import DAG
 from airflow.providers.http.operators.http import SimpleHttpOperator
 from datetime import datetime
+from urllib.parse import urlencode
+
 with DAG(
     dag_id="clickhouse_list_tables",
     start_date=datetime(2025, 1, 1),
     schedule_interval=None,
     catchup=False,
 ) as dag:
+
     list_tables = SimpleHttpOperator(
         task_id="list_tables",
         http_conn_id="clickhouse_http",  # Connection в Airflow
-        endpoint="/",
+        endpoint="/",                     # ClickHouse HTTP
         method="POST",
-        data={"query": "SHOW TABLES"},
+        data=urlencode({"query": "SHOW TABLES"}),  # Нужно как x-www-form-urlencoded
         headers={"Content-Type": "application/x-www-form-urlencoded"},
         log_response=True,  # покажет результат в логах Airflow
-    )
\ No newline at end of file
+    )