diff --git a/platformio.ini b/platformio.ini
index c8c8631..7a8924f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -39,7 +39,7 @@ build_unflags =
     -std=gnu++11
 
 lib_deps =
-    mathieucarbou/ESPAsyncWebServer @ 3.2.0
+    mathieucarbou/ESPAsyncWebServer @ 3.3.1
     bblanchon/ArduinoJson @ 7.1.0
     https://github.com/bertmelis/espMqttClient.git#v1.7.0
     nrf24/RF24 @ 1.4.9