diff --git a/services/chwriter/service.py b/services/chwriter/service.py
index c45f96c5ca5593ed6201849c92844204f9955228..0ca589343f4cb9b97268fcfb52d8f24e60319324 100755
--- a/services/chwriter/service.py
+++ b/services/chwriter/service.py
@@ -119,8 +119,6 @@ class CHWriterService(FastAPIService):
                         t0 = perf_counter()
                         url = (
                             f"http://{self.ch_address}/?"
-                            f"user={config.clickhouse.rw_user}&"
-                            f"password={config.clickhouse.rw_password or ''}&"
                             f"database={config.clickhouse.db}&"
                             f"query={ch.q_sql}"
                         )