diff --git a/firmware/bootloader/cfg/mcuconf.h b/firmware/bootloader/cfg/mcuconf.h
index 7f528df..e589776 100644
--- a/firmware/bootloader/cfg/mcuconf.h
+++ b/firmware/bootloader/cfg/mcuconf.h
@@ -46,9 +46,9 @@
 #define STM32_HSE_ENABLED                   FALSE
 #define STM32_LSE_ENABLED                   FALSE
 #define STM32_SW                            STM32_SW_PLL
-#define STM32_PLLSRC                        STM32_PLLSRC_HSI_DIV2
+#define STM32_PLLSRC                        STM32_PLLSRC_HSI
 #define STM32_PREDIV_VALUE                  1
-#define STM32_PLLMUL_VALUE                  12
+#define STM32_PLLMUL_VALUE                  6
 #define STM32_HPRE                          STM32_HPRE_DIV1
 #define STM32_PPRE                          STM32_PPRE_DIV1
 #define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK