diff --git a/services/appflowy-indexer/src/indexer.rs b/services/appflowy-indexer/src/indexer.rs
index 2b2f280d..7f450292 100644
--- a/services/appflowy-indexer/src/indexer.rs
+++ b/services/appflowy-indexer/src/indexer.rs
@@ -138,7 +138,7 @@ impl PostgresIndexer {
       .embeddings(EmbeddingRequest {
         input: EmbeddingInput::StringArray(inputs),
         model: EmbeddingsModel::TextEmbedding3Small.to_string(),
-        chunk_size: 0,
+        chunk_size: 2000,
         encoding_format: EmbeddingEncodingFormat::Float,
         dimensions: 1536,
       })
diff --git a/src/biz/search/ops.rs b/src/biz/search/ops.rs
index b653241b..4fa9c35f 100644
--- a/src/biz/search/ops.rs
+++ b/src/biz/search/ops.rs
@@ -24,7 +24,7 @@ pub async fn search_document(
     .embeddings(EmbeddingRequest {
       input: EmbeddingInput::String(request.query.clone()),
       model: EmbeddingsModel::TextEmbedding3Small.to_string(),
-      chunk_size: 0,
+      chunk_size: 500,
       encoding_format: EmbeddingEncodingFormat::Float,
       dimensions: 1536,
     })