diff --git a/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c b/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c
index 74d88a20b7..7d7990222e 100644
--- a/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c
+++ b/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c
@@ -92,6 +92,8 @@ static inline void bootloader_hardware_init(void)
 
     regi2c_ctrl_ll_master_enable_clock(true);
     regi2c_ctrl_ll_master_configure_clock();
+    REGI2C_WRITE_MASK(I2C_BIAS, I2C_BIAS_DREG_0P8, 8);  // fix low temp issue, need to increase this internal voltage
+
 }
 
 static inline void bootloader_ana_reset_config(void)