diff --git a/cpp-ch/clickhouse.version b/cpp-ch/clickhouse.version
index b88675c4a96d..a03d8962f851 100644
--- a/cpp-ch/clickhouse.version
+++ b/cpp-ch/clickhouse.version
@@ -1,3 +1,3 @@
 CH_ORG=Kyligence
-CH_BRANCH=rebase_ch/20240820
-CH_COMMIT=b5b8245b022
+CH_BRANCH=rebase_ch/20240821
+CH_COMMIT=1ea6b5399a7