diff --git a/src/mito2/src/memtable/bulk/part.rs b/src/mito2/src/memtable/bulk/part.rs
index f2402406a4..a3718b66a3 100644
--- a/src/mito2/src/memtable/bulk/part.rs
+++ b/src/mito2/src/memtable/bulk/part.rs
@@ -45,6 +45,7 @@ use mito_codec::row_converter::{
     DensePrimaryKeyCodec, PrimaryKeyCodec, PrimaryKeyCodecExt, build_primary_key_codec,
 };
 use parquet::arrow::ArrowWriter;
+use parquet::basic::{Compression, ZstdLevel};
 use parquet::data_type::AsBytes;
 use parquet::file::metadata::ParquetMetaData;
 use parquet::file::properties::WriterProperties;
@@ -635,6 +636,7 @@ impl BulkPartEncoder {
                 .set_key_value_metadata(Some(vec![key_value_meta]))
                 .set_write_batch_size(row_group_size)
                 .set_max_row_group_size(row_group_size)
+                .set_compression(Compression::ZSTD(ZstdLevel::default()))
                 .set_column_index_truncate_length(None)
                 .set_statistics_truncate_length(None)
                 .build(),