diff --git a/testhal/STM32/STM32L1xx/IRQ_STORM/mcuconf.h b/testhal/STM32/STM32L1xx/IRQ_STORM/mcuconf.h
index 0bf9c02f1..05a630669 100644
--- a/testhal/STM32/STM32L1xx/IRQ_STORM/mcuconf.h
+++ b/testhal/STM32/STM32L1xx/IRQ_STORM/mcuconf.h
@@ -99,15 +99,15 @@
  * GPT driver system settings.
  */
 #define STM32_GPT_USE_TIM2                  FALSE
-#define STM32_GPT_USE_TIM3                  FALSE
-#define STM32_GPT_USE_TIM4                  FALSE
+#define STM32_GPT_USE_TIM3                  TRUE
+#define STM32_GPT_USE_TIM4                  TRUE
 #define STM32_GPT_USE_TIM6                  FALSE
 #define STM32_GPT_USE_TIM7                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
 #define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
+#define STM32_GPT_TIM3_IRQ_PRIORITY         10
+#define STM32_GPT_TIM4_IRQ_PRIORITY         6
 #define STM32_GPT_TIM6_IRQ_PRIORITY         7
 #define STM32_GPT_TIM7_IRQ_PRIORITY         7
 #define STM32_GPT_TIM9_IRQ_PRIORITY         7