diff --git a/components/bt/controller/esp32c2/bt.c b/components/bt/controller/esp32c2/bt.c
index add3a9cf20..9d15a48e74 100644
--- a/components/bt/controller/esp32c2/bt.c
+++ b/components/bt/controller/esp32c2/bt.c
@@ -187,7 +187,7 @@ static DRAM_ATTR esp_pm_lock_handle_t s_pm_lock = NULL;
 #endif /* #ifdef CONFIG_PM_ENABLE */
 
 #ifdef CONFIG_BT_LE_WAKEUP_SOURCE_BLE_RTC_TIMER
-#define BLE_RTC_DELAY_US                    (1100)
+#define BLE_RTC_DELAY_US                    (1800)
 #endif
 
 #ifdef CONFIG_BT_LE_WAKEUP_SOURCE_CPU_RTC_TIMER
diff --git a/components/bt/controller/lib_esp32c2/esp32c2-bt-lib b/components/bt/controller/lib_esp32c2/esp32c2-bt-lib
index 10a3ea96e0..8cc0fd4f9c 160000
--- a/components/bt/controller/lib_esp32c2/esp32c2-bt-lib
+++ b/components/bt/controller/lib_esp32c2/esp32c2-bt-lib
@@ -1 +1 @@
-Subproject commit 10a3ea96e083dd0a7a18089407361fd52f0cbc47
+Subproject commit 8cc0fd4f9ca5f0e1128510e76d8dd73c012f9e53
diff --git a/components/esp_rom/esp32c2/ld/esp32c2.rom.ld b/components/esp_rom/esp32c2/ld/esp32c2.rom.ld
index 31e24b6314..734e78a433 100644
--- a/components/esp_rom/esp32c2/ld/esp32c2.rom.ld
+++ b/components/esp_rom/esp32c2/ld/esp32c2.rom.ld
@@ -1192,7 +1192,6 @@ r_ble_lll_rfmgmt_controller_sleep_en = 0x40001648;
 r_ble_lll_rfmgmt_enable_now = 0x40001658;
 r_ble_lll_rfmgmt_is_enabled = 0x40001660;
 r_ble_lll_rfmgmt_release = 0x40001664;
-r_ble_lll_rfmgmt_release_ev = 0x40001668;
 r_ble_lll_rfmgmt_scan_changed = 0x40001670;
 r_ble_lll_rfmgmt_sched_changed = 0x40001674;
 r_ble_lll_rfmgmt_set_sleep_cb = 0x40001678;