diff --git a/src/storage/blocksstable/ob_logic_macro_id.h b/src/storage/blocksstable/ob_logic_macro_id.h
index 7fcfa3bb50..53873c60d4 100644
--- a/src/storage/blocksstable/ob_logic_macro_id.h
+++ b/src/storage/blocksstable/ob_logic_macro_id.h
@@ -27,14 +27,12 @@ namespace blocksstable
 
 struct ObMacroDataSeq
 {
-  static const int64_t MACRO_DATA_SEQ_VERSION = 2;
   static const int64_t BIT_DATA_SEQ = 32;
   static const int64_t BIT_PARALLEL_IDX = 11;
   static const int64_t BIT_BLOCK_TYPE = 3;
   static const int64_t BIT_MERGE_TYPE = 2;
   static const int64_t BIT_SSTABLE_SEQ = 10;
-  static const int64_t BIT_VERSION = 3;
-  static const int64_t BIT_RESERVED = 2;
+  static const int64_t BIT_RESERVED = 5;
   static const int64_t BIT_SIGN = 1;
   static const int64_t MAX_PARALLEL_IDX = (0x1UL << BIT_PARALLEL_IDX) - 1;
   static const int64_t MAX_SSTABLE_SEQ = (0x1UL << BIT_SSTABLE_SEQ) - 1;
@@ -49,8 +47,8 @@ struct ObMacroDataSeq
     REBUILD_MACRO_BLOCK_MERGE = 2,
   };
 
-  ObMacroDataSeq() : macro_data_seq_(0) { version_ = MACRO_DATA_SEQ_VERSION; }
-  ObMacroDataSeq(const int64_t data_seq) : macro_data_seq_(data_seq) { version_ = MACRO_DATA_SEQ_VERSION; }
+  ObMacroDataSeq() : macro_data_seq_(0) {}
+  ObMacroDataSeq(const int64_t data_seq) : macro_data_seq_(data_seq) {}
   virtual ~ObMacroDataSeq() = default;
   ObMacroDataSeq &operator=(const ObMacroDataSeq &other)
   {
@@ -61,7 +59,7 @@ struct ObMacroDataSeq
   }
   bool operator ==(const ObMacroDataSeq &other) const { return macro_data_seq_ == other.macro_data_seq_; }
   bool operator !=(const ObMacroDataSeq &other) const { return macro_data_seq_ != other.macro_data_seq_; }
-  OB_INLINE void reset() { macro_data_seq_ = 0; version_ = MACRO_DATA_SEQ_VERSION; }
+  OB_INLINE void reset() { macro_data_seq_ = 0; }
   OB_INLINE int64_t get_data_seq() const { return macro_data_seq_; }
   OB_INLINE int64_t get_parallel_idx() const { return parallel_idx_; }
   OB_INLINE bool is_valid() const { return macro_data_seq_ >= 0; }
@@ -103,7 +101,7 @@ struct ObMacroDataSeq
   int deserialize(const char *buf, const int64_t data_len, int64_t &pos);
   int64_t get_serialize_size() const;
   TO_STRING_KV(K_(data_seq), K_(parallel_idx), K_(block_type), K_(merge_type),
-      K_(sstable_logic_seq), K_(version), K_(reserved), K_(sign), K_(macro_data_seq));
+      K_(sstable_logic_seq), K_(reserved), K_(sign), K_(macro_data_seq));
   union
   {
     int64_t macro_data_seq_;
@@ -114,7 +112,6 @@ struct ObMacroDataSeq
       uint64_t block_type_ : BIT_BLOCK_TYPE;
       uint64_t merge_type_ : BIT_MERGE_TYPE;
       uint64_t sstable_logic_seq_ : BIT_SSTABLE_SEQ;
-      uint64_t version_ : BIT_VERSION;
       uint64_t reserved_ : BIT_RESERVED;
       uint64_t sign_ : BIT_SIGN;
     };
diff --git a/unittest/storage/backup/test_backup.h b/unittest/storage/backup/test_backup.h
index 4440adc4da..31b2908421 100644
--- a/unittest/storage/backup/test_backup.h
+++ b/unittest/storage/backup/test_backup.h
@@ -50,7 +50,6 @@ static void make_random_logic_id(blocksstable::ObLogicMacroBlockId &logic_id)
   logic_id.tablet_id_ = random(1, 10000000);
   blocksstable::ObMacroDataSeq seq;
   seq.macro_data_seq_ = random(1, 10000000);
-  seq.version_ = blocksstable::ObMacroDataSeq::MACRO_DATA_SEQ_VERSION;
   logic_id.data_seq_ = seq;
   logic_id.logic_version_ = random(1, 10000000);
 }