diff --git a/images/Jennic/ISM300Z_OTA_ENC_V2_ENC.ota b/images/Jennic/ISM300Z_OTA_ENC_V2_ENC.ota
deleted file mode 100644
index 16197fa..0000000
Binary files a/images/Jennic/ISM300Z_OTA_ENC_V2_ENC.ota and /dev/null differ
diff --git a/images/Jennic/ISM300Z_OTA_ENC_V3_ENC.ota b/images/Jennic/ISM300Z_OTA_ENC_V3_ENC.ota
new file mode 100644
index 0000000..068db03
Binary files /dev/null and b/images/Jennic/ISM300Z_OTA_ENC_V3_ENC.ota differ
diff --git a/index.json b/index.json
index 29d8944..c8dfa0c 100644
--- a/index.json
+++ b/index.json
@@ -1968,13 +1968,13 @@
         "path": "images/Jennic/DMS300Z_OTA_ENC_V2_ENC.ota"
     },
     {
-        "fileVersion": 2,
-        "fileSize": 192414,
+        "fileVersion": 3,
+        "fileSize": 192926,
         "manufacturerCode": 4151,
         "imageType": 4110,
-        "sha512": "4fa445bdade02c393cc07b9750b81b608e2d447b5b6241e56c7af71ba495fcba7b7646ab7f69a038530bd8a1524fd43434ded40e297887b0c62cc344ac57a49b",
-        "url": "https://github.com/Koenkk/zigbee-OTA/raw/master/images/Jennic/ISM300Z_OTA_ENC_V2_ENC.ota",
-        "path": "images/Jennic/ISM300Z_OTA_ENC_V2_ENC.ota"
+        "sha512": "fb3df739fb53d5ccc316be0889dac0dfd47f8b1a85ddd9bcd657724ef767ddde6b7cdffb935afdf5ccaad2218d21e043cb1a909efdbca1acdc52dd3b1c2ee330",
+        "url": "https://github.com/Koenkk/zigbee-OTA/raw/master/images/Jennic/ISM300Z_OTA_ENC_V3_ENC.ota",
+        "path": "images/Jennic/ISM300Z_OTA_ENC_V3_ENC.ota"
     },
     {
         "fileVersion": 12,
@@ -2003,4 +2003,4 @@
         "path": "images/Xiaomi/20211124154453_OTA_lumi.switch.n1aeu1_0.0.0_1123_20211110.ota",
         "modelId": "lumi.switch.n1aeu1"
     }
-]
+]
\ No newline at end of file