diff --git a/src/DataTypes/Serializations/SerializationDynamic.cpp b/src/DataTypes/Serializations/SerializationDynamic.cpp
index 6bba87c40fa..ab24779ced2 100644
--- a/src/DataTypes/Serializations/SerializationDynamic.cpp
+++ b/src/DataTypes/Serializations/SerializationDynamic.cpp
@@ -115,7 +115,7 @@ void SerializationDynamic::serializeBinaryBulkStatePrefix(
     dynamic_state->max_dynamic_types = column_dynamic.getMaxDynamicTypes();
     /// Write max_dynamic_types parameter, because it can differ from the max_dynamic_types
     /// that is specified in the Dynamic type (we could decrease it before merge).
-    writeBinaryLittleEndian(dynamic_state->max_dynamic_types, *stream);
+    writeVarUInt(dynamic_state->max_dynamic_types, *stream);
 
     dynamic_state->variant_type = variant_info.variant_type;
     dynamic_state->variant_names = variant_info.variant_names;
@@ -123,7 +123,7 @@ void SerializationDynamic::serializeBinaryBulkStatePrefix(
 
     /// Write information about variants.
     size_t num_variants = dynamic_state->variant_names.size() - 1; /// Don't write shared variant, Dynamic column should always have it.
-    writeBinaryLittleEndian(num_variants, *stream);
+    writeVarUInt(num_variants, *stream);
     if (settings.data_types_binary_encoding)
     {
         const auto & variants = assert_cast<const DataTypeVariant &>(*dynamic_state->variant_type).getVariants();
@@ -252,11 +252,11 @@ ISerialization::DeserializeBinaryBulkStatePtr SerializationDynamic::deserializeD
         readBinaryLittleEndian(structure_version, *structure_stream);
         auto structure_state = std::make_shared<DeserializeBinaryBulkStateDynamicStructure>(structure_version);
         /// Read max_dynamic_types parameter.
-        readBinaryLittleEndian(structure_state->max_dynamic_types, *structure_stream);
+        readVarUInt(structure_state->max_dynamic_types, *structure_stream);
         /// Read information about variants.
         DataTypes variants;
         size_t num_variants;
-        readBinaryLittleEndian(num_variants, *structure_stream);
+        readVarUInt(num_variants, *structure_stream);
         variants.reserve(num_variants + 1); /// +1 for shared variant.
         if (settings.data_types_binary_encoding)
         {
diff --git a/src/DataTypes/Serializations/SerializationObject.cpp b/src/DataTypes/Serializations/SerializationObject.cpp
index 2dd25e540cc..0042aa6d89d 100644
--- a/src/DataTypes/Serializations/SerializationObject.cpp
+++ b/src/DataTypes/Serializations/SerializationObject.cpp
@@ -199,7 +199,7 @@ void SerializationObject::serializeBinaryBulkStatePrefix(
     auto object_state = std::make_shared<SerializeBinaryBulkStateObject>(serialization_version);
     object_state->max_dynamic_paths = column_object.getMaxDynamicPaths();
     /// Write max_dynamic_paths parameter.
-    writeBinaryLittleEndian(object_state->max_dynamic_paths, *stream);
+    writeVarUInt(object_state->max_dynamic_paths, *stream);
     /// Write all dynamic paths in sorted order.
     object_state->sorted_dynamic_paths.reserve(dynamic_paths.size());
     for (const auto & [path, _] : dynamic_paths)
@@ -354,7 +354,7 @@ ISerialization::DeserializeBinaryBulkStatePtr SerializationObject::deserializeOb
         readBinaryLittleEndian(serialization_version, *structure_stream);
         auto structure_state = std::make_shared<DeserializeBinaryBulkStateObjectStructure>(serialization_version);
         /// Read max_dynamic_paths parameter.
-        readBinaryLittleEndian(structure_state->max_dynamic_paths, *structure_stream);
+        readVarUInt(structure_state->max_dynamic_paths, *structure_stream);
         /// Read the sorted list of dynamic paths.
         size_t dynamic_paths_size;
         readVarUInt(dynamic_paths_size, *structure_stream);