diff --git a/inc/fdb_def.h b/inc/fdb_def.h
index 8008879..5e7a78e 100644
--- a/inc/fdb_def.h
+++ b/inc/fdb_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Armink, <armink.ztl@gmail.com>
+ * Copyright (c) 2020-2023, Armink, <armink.ztl@gmail.com>
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -17,8 +17,8 @@ extern "C" {
 #endif
 
 /* software version number */
-#define FDB_SW_VERSION                 "1.2.0"
-#define FDB_SW_VERSION_NUM             0x10200
+#define FDB_SW_VERSION                 "2.0.0"
+#define FDB_SW_VERSION_NUM             0x20000
 
 /* the KV max name length must less then it */
 #ifndef FDB_KV_NAME_MAX