diff --git a/components/esp8266/include/internal/esp_wifi_internal.h b/components/esp8266/include/internal/esp_wifi_internal.h
index 91f2ca88..2d91dbe5 100644
--- a/components/esp8266/include/internal/esp_wifi_internal.h
+++ b/components/esp8266/include/internal/esp_wifi_internal.h
@@ -191,6 +191,17 @@ void esp_wifi_set_pm_recv_multi_data(bool enable);
   */
 bool esp_wifi_get_pm_recv_multi_data(void);
 
+/**
+  * @brief     Enable/Disable Wi-Fi send PLCP (with long option)
+  *
+  * @param     enable         Enable or Disable this option
+  * @param     tx_with_long   Send with long PLCP or not
+  * 
+  * @return
+  *    None
+  */
+void esp_wifi_set_11b_tx_plcp(bool enable, bool tx_with_long);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/esp8266/lib/VERSION b/components/esp8266/lib/VERSION
index 6fb0df2f..306c8e0b 100644
--- a/components/esp8266/lib/VERSION
+++ b/components/esp8266/lib/VERSION
@@ -1,7 +1,7 @@
 gwen:
     core:       f4de8f12
     net80211:   f4de8f12
-    pp:         7743eff5
+    pp:         a93d26d
     wpa:        7743eff5
     espnow:     7743eff5
     wps:        7743eff5
diff --git a/components/esp8266/lib/libpp.a b/components/esp8266/lib/libpp.a
index 7afd2758..b98d11cf 100644
Binary files a/components/esp8266/lib/libpp.a and b/components/esp8266/lib/libpp.a differ
diff --git a/components/esp8266/lib/libpp_dbg.a b/components/esp8266/lib/libpp_dbg.a
index 7d35f02a..d6f80737 100644
Binary files a/components/esp8266/lib/libpp_dbg.a and b/components/esp8266/lib/libpp_dbg.a differ