diff --git a/Marlin/src/pins/stm32g0/pins_BTT_EBB42_V1_1.h b/Marlin/src/pins/stm32g0/pins_BTT_EBB42_V1_1.h
index 21f27e452d..07c68dc780 100644
--- a/Marlin/src/pins/stm32g0/pins_BTT_EBB42_V1_1.h
+++ b/Marlin/src/pins/stm32g0/pins_BTT_EBB42_V1_1.h
@@ -125,7 +125,8 @@
 //
 // Heaters / Fans
 //
-#define HEATER_0_PIN                        PA2   // "HE"
+#define HEATER_0_PIN                        PA2   // "HE" V1.1
+#define HEATER_1_PIN                        PB13  // "HE" V1.2
 #define FAN0_PIN                            PA0   // "FAN0"
 #define FAN1_PIN                            PA1   // "FAN1"
 
diff --git a/ini/stm32g0.ini b/ini/stm32g0.ini
index 8d9353f0af..17403292b7 100644
--- a/ini/stm32g0.ini
+++ b/ini/stm32g0.ini
@@ -33,6 +33,7 @@ build_flags = -DPIN_WIRE_SCL=PB3 -DPIN_WIRE_SDA=PB4
 extends                     = stm32_variant
 platform                    = ststm32@~14.1.0
 platform_packages           = framework-arduinoststm32@https://github.com/stm32duino/Arduino_Core_STM32/archive/main.zip
+                              toolchain-gccarmnoneeabi@1.100301.220327
 board                       = marlin_BTT_EBB42_V1_1
 board_build.offset          = 0x0000
 board_upload.offset_address = 0x08000000