diff --git a/sonoff/sonoff.ino b/sonoff/sonoff.ino
index 9b835cc4a..e6565c286 100644
--- a/sonoff/sonoff.ino
+++ b/sonoff/sonoff.ino
@@ -25,7 +25,7 @@
     - Select IDE Tools - Flash Size: "1M (no SPIFFS)"
   ====================================================*/
 
-#define VERSION                0x050D0100   // 5.13.1a
+#define VERSION                0x050D0101   // 5.13.1a
 
 // Location specific includes
 #include <core_version.h>                   // Arduino_Esp8266 version information (ARDUINO_ESP8266_RELEASE and ARDUINO_ESP8266_RELEASE_2_3_0)