diff --git a/components/esp_hw_support/port/esp32c3/rtc_sleep.c b/components/esp_hw_support/port/esp32c3/rtc_sleep.c
index dc4794d613..cbaa4b689e 100644
--- a/components/esp_hw_support/port/esp32c3/rtc_sleep.c
+++ b/components/esp_hw_support/port/esp32c3/rtc_sleep.c
@@ -67,6 +67,8 @@ void rtc_sleep_init(rtc_sleep_config_t cfg)
         rtc_sleep_pu_config_t pu_cfg = RTC_SLEEP_PU_CONFIG_ALL(1);
         rtc_sleep_pu(pu_cfg);
     }
+    /* mem force pu */
+    SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_LSLP_MEM_FORCE_PU);
     if (cfg.wifi_pd_en) {
         SET_PERI_REG_MASK(RTC_CNTL_DIG_PWC_REG, RTC_CNTL_WIFI_PD_EN);
     } else {
diff --git a/components/soc/esp32c3/include/soc/rtc.h b/components/soc/esp32c3/include/soc/rtc.h
index 0b3240f877..c6c87bbdad 100644
--- a/components/soc/esp32c3/include/soc/rtc.h
+++ b/components/soc/esp32c3/include/soc/rtc.h
@@ -58,9 +58,8 @@ extern "C" {
 
 /* Approximate mapping of voltages to RTC_CNTL_DBIAS_WAK, RTC_CNTL_DBIAS_SLP,
  * RTC_CNTL_DIG_DBIAS_WAK, RTC_CNTL_DIG_DBIAS_SLP values.
- * Valid if RTC_CNTL_DBG_ATTEN is 0.
  */
-#define RTC_CNTL_DBIAS_SLP  0 //sleep dig_dbias & rtc_dbias
+#define RTC_CNTL_DBIAS_SLP  5 //sleep dig_dbias & rtc_dbias
 #define RTC_CNTL_DBIAS_0V90 13 //digital voltage
 #define RTC_CNTL_DBIAS_0V95 16
 #define RTC_CNTL_DBIAS_1V00 18
@@ -105,7 +104,7 @@ extern "C" {
 /*
 set sleep_init default param
 */
-#define RTC_CNTL_DBG_ATTEN_LIGHTSLEEP_DEFAULT  3
+#define RTC_CNTL_DBG_ATTEN_LIGHTSLEEP_DEFAULT  5
 #define RTC_CNTL_DBG_ATTEN_LIGHTSLEEP_NODROP  0
 #define RTC_CNTL_DBG_ATTEN_DEEPSLEEP_DEFAULT  15
 #define RTC_CNTL_DBG_ATTEN_MONITOR_DEFAULT  0