diff --git a/iotm/esp8266_4mb/400/firmware.bin b/iotm/esp8266_4mb/400/firmware.bin
index f44ca861..a9d20a6e 100644
Binary files a/iotm/esp8266_4mb/400/firmware.bin and b/iotm/esp8266_4mb/400/firmware.bin differ
diff --git a/iotm/esp8266_4mb/400/littlefs.bin b/iotm/esp8266_4mb/400/littlefs.bin
index faf52c77..6f1637d0 100644
Binary files a/iotm/esp8266_4mb/400/littlefs.bin and b/iotm/esp8266_4mb/400/littlefs.bin differ
diff --git a/iotm/ver.json b/iotm/ver.json
index 128ca01f..06766b23 100644
--- a/iotm/ver.json
+++ b/iotm/ver.json
@@ -1,5 +1,5 @@
 {
-    "esp32_4mb": {
+    "esp8266_4mb": {
         "0": "400"
     }
 }
\ No newline at end of file