diff --git a/Arduino/CanGrow/CanGrow.ino b/Arduino/CanGrow/CanGrow.ino
index b6e35f5..56dd492 100644
--- a/Arduino/CanGrow/CanGrow.ino
+++ b/Arduino/CanGrow/CanGrow.ino
@@ -45,6 +45,7 @@
 
 #include <WiFi.h>
 #include <AsyncTCP.h>
+#include <Update.h>
 #endif
 
 // https://github.com/mathieucarbou/ESPAsyncWebServer
diff --git a/Arduino/CanGrow/include/Webserver/Page_system.h b/Arduino/CanGrow/include/Webserver/Page_system.h
index 370b046..9f2e26b 100644
--- a/Arduino/CanGrow/include/Webserver/Page_system.h
+++ b/Arduino/CanGrow/include/Webserver/Page_system.h
@@ -95,7 +95,12 @@ void WebPage_system_restart(AsyncWebServerRequest *request) {
 void WebPage_system_update_ApplyUpdate(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
     if(!index){
       Serial.printf(":: [Webserver:system:update:ApplyUpdate] Update Start: %s\n", filename.c_str());
+      
+      // https://github.com/me-no-dev/ESPAsyncWebServer/issues/455#issuecomment-451728099
+      // workaround for bug with ESP32
+      #ifdef ESP8266
       Update.runAsync(true);
+      #endif
       if(!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)){
         Update.printError(Serial);
       }