diff --git a/src/main/java/kr/pe/ecmaxp/openpython/OpenPython.kt b/src/main/java/kr/pe/ecmaxp/openpython/OpenPython.kt
index cfa068a2..9bdf482e 100644
--- a/src/main/java/kr/pe/ecmaxp/openpython/OpenPython.kt
+++ b/src/main/java/kr/pe/ecmaxp/openpython/OpenPython.kt
@@ -41,7 +41,7 @@ object OpenPython {
 
         Items.registerEEPROM(
                 "EEPROM (OpenPython BIOS)",
-                OpenPythonFirmware.DEBUG.loadEEPROM(),
+                OpenPythonFirmware.v1_0_0.loadEEPROM(),
                 byteArrayOf(),
                 false
         )
diff --git a/src/main/java/kr/pe/ecmaxp/openpython/arch/OpenPythonFirmware.kt b/src/main/java/kr/pe/ecmaxp/openpython/arch/OpenPythonFirmware.kt
index e5b78b82..81291d0f 100644
--- a/src/main/java/kr/pe/ecmaxp/openpython/arch/OpenPythonFirmware.kt
+++ b/src/main/java/kr/pe/ecmaxp/openpython/arch/OpenPythonFirmware.kt
@@ -6,12 +6,12 @@ import kr.pe.ecmaxp.thumbsf.CPU
 import java.net.URL
 import java.util.*
 
-class OpenPythonFirmware(val name: String = "debug") {
+class OpenPythonFirmware(val name: String) {
     val protocol = 1
     private val path: String = "/assets/${OpenPython.MODID}/firmwares/$name"
 
     companion object {
-        val DEBUG = OpenPythonFirmware()
+        val v1_0_0 = OpenPythonFirmware("v1.0.0")
     }
 
     init {
diff --git a/src/main/java/kr/pe/ecmaxp/openpython/console/OpenPieBenchmark.kt b/src/main/java/kr/pe/ecmaxp/openpython/console/OpenPieBenchmark.kt
index 74388c4a..f6cfaea7 100644
--- a/src/main/java/kr/pe/ecmaxp/openpython/console/OpenPieBenchmark.kt
+++ b/src/main/java/kr/pe/ecmaxp/openpython/console/OpenPieBenchmark.kt
@@ -17,7 +17,7 @@ object OpenPythonBenchmark {
     @JvmStatic
     fun main(args: Array<String>) {
         val cpu = CPU()
-        val firmware = OpenPythonFirmware.DEBUG
+        val firmware = OpenPythonFirmware.v1_0_0
         cpu.memory.apply {
             flash(FLASH.address, FLASH.size, firmware.loadFirmware())
             map(SRAM.address, SRAM.size, MemoryFlag.RW) // ram