diff --git a/lib/WiFiManager/library.json b/lib/WiFiManager/library.json
index 37c6bc5..f6f43fb 100644
--- a/lib/WiFiManager/library.json
+++ b/lib/WiFiManager/library.json
@@ -41,7 +41,7 @@
   "dependencies": [
     {
       "name": "ESP32Async/ESPAsyncWebServer",
-      "version": "3.8.1"
+      "version": "3.9.1"
     },
     {
       "name": "DFTE",
diff --git a/platformio.ini b/platformio.ini
index 9c1c4d9..adfa746 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -9,7 +9,7 @@ monitor_speed = 115200
 test_framework = unity
 test_build_src = no
 lib_deps = 
-    ESP32Async/ESPAsyncWebServer@3.8.1
+    ESP32Async/ESPAsyncWebServer@3.9.1
     https://github.com/alexhopeoconnor/DFTE
 
 [env:esp32]
@@ -24,6 +24,6 @@ build_unflags =
 build_flags = 
     -std=gnu++14
 lib_deps = 
-    ESP32Async/ESPAsyncWebServer@3.8.1
+    ESP32Async/ESPAsyncWebServer@3.9.1
     https://github.com/alexhopeoconnor/DFTE