diff --git a/components/esp_wifi/include/esp_wifi.h b/components/esp_wifi/include/esp_wifi.h
index e1120510a9..1b6d2f33f3 100644
--- a/components/esp_wifi/include/esp_wifi.h
+++ b/components/esp_wifi/include/esp_wifi.h
@@ -564,6 +564,7 @@ esp_err_t esp_wifi_get_scan_parameters(wifi_scan_default_params_t *config);
   *    - ESP_OK: succeed
   *    - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by esp_wifi_init
   *    - ESP_ERR_WIFI_NOT_STARTED: WiFi is not started by esp_wifi_start
+  *    - ESP_ERR_WIFI_STATE: WiFi is still connecting when esp_wifi_scan_stop() is invoked.
   */
 esp_err_t esp_wifi_scan_stop(void);
 
diff --git a/components/esp_wifi/lib b/components/esp_wifi/lib
index 18b5d5b3b2..a4be6e36da 160000
--- a/components/esp_wifi/lib
+++ b/components/esp_wifi/lib
@@ -1 +1 @@
-Subproject commit 18b5d5b3b2b6481549db30e9a36b1aac790c5991
+Subproject commit a4be6e36da397bed9452ab1d7291f7c73a0d716e