diff --git a/grobro/model/growatt_noah_registers.json b/grobro/model/growatt_noah_registers.json
index 1aa55f2..d8e763a 100644
--- a/grobro/model/growatt_noah_registers.json
+++ b/grobro/model/growatt_noah_registers.json
@@ -1925,7 +1925,7 @@
       "growatt": {
         "position": {
           "register_no": 119,
-          "offset": 0,
+          "offset": 1,
           "size": 1
         },
         "data": {
@@ -1941,8 +1941,8 @@
     "fw_version_part_2": {
       "growatt": {
         "position": {
-          "register_no": 119,
-          "offset": 1,
+          "register_no": 120,
+          "offset": 0,
           "size": 1
         },
         "data": {
@@ -1959,7 +1959,7 @@
       "growatt": {
         "position": {
           "register_no": 120,
-          "offset": 0,
+          "offset": 1,
           "size": 1
         },
         "data": {