diff --git a/platformio.ini b/platformio.ini
index 5f20b1d2..db5863b9 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -50,6 +50,7 @@ build_unflags =
 
 lib_deps =
     ESP32Async/ESPAsyncWebServer @ 3.7.9
+    ESP32Async/AsyncTCP @ 3.4.5
     bblanchon/ArduinoJson @ 7.4.2
     https://github.com/bertmelis/espMqttClient.git#v1.7.0
     nrf24/RF24 @ 1.4.11