diff --git a/tests/queries/0_stateless/01375_storage_file_tsv_csv_with_names_write_prefix.sh b/tests/queries/0_stateless/01375_storage_file_tsv_csv_with_names_write_prefix.sh
index 7731deaa8ff..a634f689dca 100755
--- a/tests/queries/0_stateless/01375_storage_file_tsv_csv_with_names_write_prefix.sh
+++ b/tests/queries/0_stateless/01375_storage_file_tsv_csv_with_names_write_prefix.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# Tags: no-parallel
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh
diff --git a/tests/queries/0_stateless/02103_with_names_and_types_parallel_parsing.sh b/tests/queries/0_stateless/02103_with_names_and_types_parallel_parsing.sh
index 30be432b8b2..487282099e2 100755
--- a/tests/queries/0_stateless/02103_with_names_and_types_parallel_parsing.sh
+++ b/tests/queries/0_stateless/02103_with_names_and_types_parallel_parsing.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
+# Tags: no-parallel
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh