diff --git a/pymilvus/client/entity_helper.py b/pymilvus/client/entity_helper.py
index a946d52b6..21a3b40b6 100644
--- a/pymilvus/client/entity_helper.py
+++ b/pymilvus/client/entity_helper.py
@@ -107,8 +107,8 @@ def sparse_float_row_to_bytes(indices: Iterable[int], values: Iterable[float]):
             values = []
             row = row_data.items() if isinstance(row_data, dict) else row_data
             for index, value in row:
-                indices.append(index)
-                values.append(value)
+                indices.append(int(index))
+                values.append(float(value))
             result.contents.append(sparse_float_row_to_bytes(indices, values))
             dim = max(dim, indices[-1] + 1)
         result.dim = dim