diff --git a/freemodbus/modbus/include/mbconfig.h b/freemodbus/modbus/include/mbconfig.h
index 6dbb9ca..7220045 100644
--- a/freemodbus/modbus/include/mbconfig.h
+++ b/freemodbus/modbus/include/mbconfig.h
@@ -175,7 +175,7 @@ PR_BEGIN_EXTERN_C
 #define MB_FUNC_READWRITE_HOLDING_ENABLED       (  1 )
 
 /*! \brief Check the option to place timer handler into IRAM */
-#define MB_PORT_TIMER_ISR_IN_IRAM               (  CONFIG_FMB_TIMER_ISR_IN_IRAM )
+#define MB_PORT_TIMER_ISR_IN_IRAM               (  CONFIG_FMB_TIMER_USE_ISR_DISPATCH_METHOD )
 
 /*! @} */
 #ifdef __cplusplus
diff --git a/idf_component.yml b/idf_component.yml
index 444d15a..f28d81d 100644
--- a/idf_component.yml
+++ b/idf_component.yml
@@ -1,4 +1,4 @@
-version: "1.0.11"
+version: "1.0.12"
 description: ESP-MODBUS is the official Modbus library for Espressif SoCs.
 url: https://github.com/espressif/esp-modbus
 dependencies: