diff --git a/scripts/db_migrator.py b/scripts/db_migrator.py
index 97e6175c17..34922b5256 100755
--- a/scripts/db_migrator.py
+++ b/scripts/db_migrator.py
@@ -45,7 +45,7 @@ def __init__(self, namespace, socket=None):
                      none-zero values.
               build: sequentially increase within a minor version domain.
         """
-        self.CURRENT_VERSION = 'version_2_0_5'
+        self.CURRENT_VERSION = 'version_2_0_0'
 
         self.TABLE_NAME      = 'VERSIONS'
         self.TABLE_KEY       = 'DATABASE'
@@ -409,6 +409,18 @@ def prepare_dynamic_buffer_for_warm_reboot(self, buffer_pools=None, buffer_profi
 
         return True
 
+    def migrate_pfcwd_sw_enable_table(self):
+        """ 
+        Migrate "pfc_enable" to "pfc_enable" and "pfcwd_sw_enable"
+        1. pfc_enable means enable pfc on certain queues
+        2. pfcwd_sw_enable means enable PFC software watchdog on certain queues
+        """
+        qos_maps = self.configDB.get_table('PORT_QOS_MAP')
+        for k, v in qos_maps.items():
+            if 'pfc_enable' in v:
+                v['pfcwd_sw_enable'] = v['pfc_enable']
+                self.configDB.set_entry('PORT_QOS_MAP', k, v)
+
     def version_unknown(self):
         """
         version_unknown tracks all SONiC versions that doesn't have a version
@@ -544,65 +556,10 @@ def version_1_0_6(self):
         return 'version_2_0_0'
 
     def version_2_0_0(self):
-        """
-        Version 2_0_0 (A dummy migrator).
-        """
-        log.log_info('Handling version_2_0_0')
-
-        self.set_version('version_2_0_1')
-        return 'version_2_0_1'
-
-    def version_2_0_1(self):
-        """
-        Version 2_0_1 (A dummy migrator).
-        """
-        log.log_info('Handling version_2_0_1')
-        
-        self.set_version('version_2_0_2')
-        return 'version_2_0_2'
-
-    def version_2_0_2(self):
-        """
-        Version 2_0_2 (A dummy migrator).
-        """
-        log.log_info('Handling version_2_0_2')
-
-        self.set_version('version_2_0_3')
-        return 'version_2_0_3'
-
-    def version_2_0_3(self):
-        """
-        Version 2_0_3 (A dummy migrator).
-        """
-        log.log_info('Handling version_2_0_3')
-        
-        self.set_version('version_2_0_4')
-        return 'version_2_0_4'
-
-    def version_2_0_4(self):
-        """
-        Version 2_0_4
-        """
-        log.log_info('Handling version_2_0_4')
-        # Migrate "pfc_enable" to "pfc_enable" and "pfcwd_sw_enable"
-        # 1. pfc_enable means enable pfc on certain queues
-        # 2. pfcwd_sw_enable means enable PFC software watchdog on certain queues
-        # By default, PFC software watchdog is enabled on all pfc enabled queues.
-        qos_maps = self.configDB.get_table('PORT_QOS_MAP')
-        for k, v in qos_maps.items():
-            if 'pfc_enable' in v:
-                v['pfcwd_sw_enable'] = v['pfc_enable']
-                self.configDB.set_entry('PORT_QOS_MAP', k, v)
-        self.set_version('version_2_0_5')
-
-        return 'version_2_0_5'
-
-    def version_2_0_5(self):
         """
         Current latest version. Nothing to do here.
         """
-        log.log_info('Handling version_2_0_5')
-        return None
+        log.log_info('Handling version_2_0_0')
 
     def get_version(self):
         version = self.configDB.get_entry(self.TABLE_NAME, self.TABLE_KEY)
@@ -652,6 +609,9 @@ def common_migration_ops(self):
         #    version 2_0_1 has been occupied by 202106
         if self.asic_type == "mellanox":
             self.mellanox_buffer_migrator.mlnx_reclaiming_unused_buffer()
+        
+        # Migrate pfcwd_sw_enable table  
+        self.migrate_pfcwd_sw_enable_table()
 
     def migrate(self):
         version = self.get_version()
diff --git a/tests/db_migrator_input/config_db/qos_map_table_expected.json b/tests/db_migrator_input/config_db/qos_map_table_expected.json
index 946f7f02d9..0a74fb5a7d 100644
--- a/tests/db_migrator_input/config_db/qos_map_table_expected.json
+++ b/tests/db_migrator_input/config_db/qos_map_table_expected.json
@@ -1,6 +1,6 @@
 {
     "VERSIONS|DATABASE": {
-        "VERSION": "version_2_0_5"
+        "VERSION": "version_2_0_0"
     },
     "PORT_QOS_MAP": {
         "Ethernet0": {
diff --git a/tests/db_migrator_input/config_db/qos_map_table_input.json b/tests/db_migrator_input/config_db/qos_map_table_input.json
index c7dbce9658..fb4edffe1d 100644
--- a/tests/db_migrator_input/config_db/qos_map_table_input.json
+++ b/tests/db_migrator_input/config_db/qos_map_table_input.json
@@ -1,6 +1,6 @@
 {
     "VERSIONS|DATABASE": {
-        "VERSION": "version_2_0_4"
+        "VERSION": "version_2_0_0"
     },
     "PORT_QOS_MAP": {
         "Ethernet0": {