diff --git a/lvgl_i2c/i2c_manager.c b/lvgl_i2c/i2c_manager.c
index fa8045a..e17f48c 100644
--- a/lvgl_i2c/i2c_manager.c
+++ b/lvgl_i2c/i2c_manager.c
@@ -66,8 +66,8 @@ static const uint8_t ACK_CHECK_EN = 1;
 		#define I2C_MANAGER_0_PULLUPS 	false
 	#endif
 
-	#define I2C_MANAGER_0_TIMEOUT 		( CONFIG_I2C_MANAGER_0_TIMEOUT / portTICK_RATE_MS )
-	#define I2C_MANAGER_0_LOCK_TIMEOUT	( CONFIG_I2C_MANAGER_0_LOCK_TIMEOUT / portTICK_RATE_MS )
+	#define I2C_MANAGER_0_TIMEOUT 		( CONFIG_I2C_MANAGER_0_TIMEOUT / portTICK_PERIOD_MS )
+	#define I2C_MANAGER_0_LOCK_TIMEOUT	( CONFIG_I2C_MANAGER_0_LOCK_TIMEOUT / portTICK_PERIOD_MS )
 #endif
 
 
@@ -79,8 +79,8 @@ static const uint8_t ACK_CHECK_EN = 1;
 		#define I2C_MANAGER_1_PULLUPS 	false
 	#endif
 
-	#define I2C_MANAGER_1_TIMEOUT 		( CONFIG_I2C_MANAGER_1_TIMEOUT / portTICK_RATE_MS )
-	#define I2C_MANAGER_1_LOCK_TIMEOUT	( CONFIG_I2C_MANAGER_1_LOCK_TIMEOUT / portTICK_RATE_MS )
+	#define I2C_MANAGER_1_TIMEOUT 		( CONFIG_I2C_MANAGER_1_TIMEOUT / portTICK_PERIOD_MS )
+	#define I2C_MANAGER_1_LOCK_TIMEOUT	( CONFIG_I2C_MANAGER_1_LOCK_TIMEOUT / portTICK_PERIOD_MS )
 #endif
 
 #define ERROR_PORT(port, fail) { \
@@ -244,12 +244,12 @@ esp_err_t I2C_FN(_write)(i2c_port_t port, uint16_t addr, uint32_t reg, const uin
 	TickType_t timeout = 0;
 	#if defined (I2C_ZERO)
 		if (port == I2C_NUM_0) {
-			timeout = (CONFIG_I2C_MANAGER_0_TIMEOUT) / portTICK_RATE_MS;
+			timeout = (CONFIG_I2C_MANAGER_0_TIMEOUT) / portTICK_PERIOD_MS;
 		}
 	#endif
 	#if defined (I2C_ONE)
 		if (port == I2C_NUM_1) {
-			timeout = (CONFIG_I2C_MANAGER_1_TIMEOUT) / portTICK_RATE_MS;
+			timeout = (CONFIG_I2C_MANAGER_1_TIMEOUT) / portTICK_PERIOD_MS;
 		}
 	#endif
 
@@ -294,12 +294,12 @@ esp_err_t I2C_FN(_lock)(i2c_port_t port) {
 	TickType_t timeout;
 	#if defined (I2C_ZERO)
 		if (port == I2C_NUM_0) {
-			timeout = (CONFIG_I2C_MANAGER_0_LOCK_TIMEOUT) / portTICK_RATE_MS;
+			timeout = (CONFIG_I2C_MANAGER_0_LOCK_TIMEOUT) / portTICK_PERIOD_MS;
 		}
 	#endif
 	#if defined (I2C_ONE)
 		if (port == I2C_NUM_1) {
-			timeout = (CONFIG_I2C_MANAGER_1_LOCK_TIMEOUT) / portTICK_RATE_MS;
+			timeout = (CONFIG_I2C_MANAGER_1_LOCK_TIMEOUT) / portTICK_PERIOD_MS;
 		}
 	#endif
 
diff --git a/lvgl_tft/ili9163c.c b/lvgl_tft/ili9163c.c
index 2941636..13f22b7 100644
--- a/lvgl_tft/ili9163c.c
+++ b/lvgl_tft/ili9163c.c
@@ -145,9 +145,9 @@ void ili9163c_init(void)
 
 	//Reset the display
 	gpio_set_level(ILI9163C_RST, 0);
-	vTaskDelay(100 / portTICK_RATE_MS);
+	vTaskDelay(100 / portTICK_PERIOD_MS);
 	gpio_set_level(ILI9163C_RST, 1);
-	vTaskDelay(150 / portTICK_RATE_MS);
+	vTaskDelay(150 / portTICK_PERIOD_MS);
 
 	//Send all the commands
 	uint16_t cmd = 0;
@@ -157,7 +157,7 @@ void ili9163c_init(void)
 		ili9163c_send_data(ili_init_cmds[cmd].data, ili_init_cmds[cmd].databytes & 0x1F);
 		if (ili_init_cmds[cmd].databytes & 0x80)
 		{
-			vTaskDelay(150 / portTICK_RATE_MS);
+			vTaskDelay(150 / portTICK_PERIOD_MS);
 		}
 		cmd++;
 	}
diff --git a/lvgl_tft/pcd8544.c b/lvgl_tft/pcd8544.c
index 13b357c..10684c1 100644
--- a/lvgl_tft/pcd8544.c
+++ b/lvgl_tft/pcd8544.c
@@ -64,9 +64,9 @@ void pcd8544_init(void){
 
     // Reset the display
     gpio_set_level(PCD8544_RST, 0);
-    vTaskDelay(100 / portTICK_RATE_MS);
+    vTaskDelay(100 / portTICK_PERIOD_MS);
     gpio_set_level(PCD8544_RST, 1);
-    vTaskDelay(100 / portTICK_RATE_MS);
+    vTaskDelay(100 / portTICK_PERIOD_MS);
 
     pcd8544_send_cmd(0x21);     /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */
     pcd8544_send_cmd(0x06);     /* temp. control: b10 = 2  */